| MIS (Management Information Systems) consultants |
7390 |
541618 |
| MRI (magnetic resonance imaging) center |
8180 |
621512 |
| Macaroni machinery (mfg.) |
3190 |
333294 |
| Macaroni products (mfg.) |
1270 |
311823 |
| Macaroni, canned or frozen (mfg.) |
1090 |
311422 |
| Macaroni, dry (mfg.) |
1270 |
311823 |
| Macaroni, fresh (mfg.) |
1280 |
311991 |
| Machetes (mfg.) |
2790 |
332212 |
| Machine designing service |
7290 |
541330 |
| Machine guards, sheet metal (mfg.) |
2870 |
332322 |
| Machine guns (mfg.) |
2970 |
332994 |
| Machine parts, stamped metal (mfg.) |
2780 |
332116 |
| Machine repair shop, electric (mfg.) |
8790 |
811211 |
| Machine repair shop, exc. electric (mfg.) |
3190 |
333298 |
| Machine shop, exc. railroad (mfg.) |
2880 |
332710 |
| Machine shop, railroad |
6290 |
488210 |
| Machine tool accessories (mfg.) |
3170 |
333515 |
| Machine tool attachments (mfg.) |
3170 |
333515 |
| Machine tool fixtures (mfg.) |
3170 |
333515 |
| Machine tool rebuilding (mfg.) |
3170 |
333515 |
| Machine tools (mfg.) |
3170 |
333512 |
| Machine tools (whsl.) |
4270 |
423830 |
| Machine vises (mfg.) |
3170 |
333515 |
| Machine, hand tools, precision (whsl.) |
4270 |
423830 |
| Machinery \ any specified not listed (mfg.) |
3190 |
333298 |
| Machinery \ n.s. (mfg.) |
3290 |
333000 |
| Machinery \ n.s. (ret.) |
4890 |
444200 |
| Machinery \ n.s. (whsl.) |
4270 |
423800 |
| Machinery and industrial equipment (whsl.) |
4270 |
423830 |
| Machinery castings, nonferrous, including aluminum (mfg.) |
2770 |
331524 |
| Machinery dismantling (const.) |
0770 |
238290 |
| Machinery moving |
6170 |
484000 |
| Machinery, farm (mfg.) |
3070 |
333111 |
| Machinery, farm (whsl.) |
4270 |
423820 |
| Machinery, secondhand (whsl.) |
4270 |
423810 |
| Machinists' precision tools (whsl.) |
4270 |
423830 |
| Mackerel catching |
0280 |
114111 |
| Mackinaws (mfg.) |
1680 |
315291 |
| Magazine binding (mfg.) |
1990 |
323111 |
| Magazine clipping bureau |
6780 |
519110 |
| Magazine distribution (whsl.) |
4580 |
424920 |
| Magazine publishing |
6480 |
511120 |
| Magazine publishing and printing |
6480 |
511120 |
| Magazine racks (mfg.) |
3890 |
337122 |
| Magazine stand (ret.) |
5370 |
451212 |
| Magazine subscription agency (ret.) |
5690 |
454390 |
| Magazine subscription office (ret.) |
5690 |
454390 |
| Magazine subscriptions (ret.) |
5690 |
454390 |
| Magazines (ret.) |
5370 |
451212 |
| Magazines (whsl.) |
4580 |
424920 |
| Magazines, gun (mfg.) |
2970 |
332995 |
| Magic supply stores (ret.) |
5270 |
451120 |
| Magician |
8560 |
711510 |
| Magicians, independent |
8560 |
711510 |
| Magnesia cement (mfg.) |
2480 |
327125 |
| Magnesia refractories (mfg.) |
2480 |
327125 |
| Magnesia works (mfg.) |
2590 |
327992 |
| Magnesite (ext.) |
0470 |
212325 |
| Magnesite ground (mfg.) |
2590 |
327992 |
| Magnesite products prefabricated (mfg.) |
2590 |
327992 |
| Magnesite refractories (mfg.) |
2480 |
327125 |
| Magnesium castings (mfg.) |
2770 |
331528 |
| Magnesium extruding (mfg.) |
2690 |
331491 |
| Magnesium foil (mfg.) |
2980 |
332999 |
| Magnesium foundry (mfg.) |
2770 |
331528 |
| Magnesium pigs (mfg.) |
2690 |
331491 |
| Magnesium pipe (mfg.) |
2690 |
331491 |
| Magnesium refinery (mfg.) |
2690 |
331491 |
| Magnesium smelting (mfg.) |
2690 |
331491 |
| Magnet wire, insulated (mfg.) |
2690 |
331422 |
| Magnetic drain plugs (mfg.) |
2980 |
332999 |
| Magnetic ink readers, computer (mfg.) |
3360 |
334119 |
| Magnetic ink recognition devices (mfg.) |
3360 |
334119 |
| Magnetic recording tape (mfg.) |
3390 |
334613 |
| Magnetic reels, cassettes and disks (mfg.) |
3390 |
334613 |
| Magnetic resonance imaging (MRI) center |
8180 |
621512 |
| Magnetic storage devices for computers (mfg.) |
3360 |
334119 |
| Magnetic tape cleaners (mfg.) |
3390 |
334613 |
| Magnetic tape processing service |
6695 |
518210 |
| Magnetic testing oil service (ext.) |
0490 |
213112 |
| Magnetite (ext.) |
0390 |
212210 |
| Magnetos (mfg.) |
3570 |
336322 |
| Magnifiers (mfg.) |
3960 |
339115 |
| Maid registries |
7580 |
561310 |
| Mail advertising service |
7470 |
541860 |
| Mail carriers, contract |
6370 |
491110 |
| Mail chutes (mfg.) |
2870 |
332322 |
| Mail delivery |
6370 |
491110 |
| Mail order coins (ret.) |
5592 |
454113 |
| Mail order food (ret.) |
5592 |
454113 |
| Mail order house (ret.) |
5592 |
454113 |
| Mail order house warehouse (ret.) |
5592 |
454113 |
| Mail order record club (ret.) |
5592 |
454113 |
| Mail pre-sorting service |
7590 |
561499 |
| Mail route, contract |
6370 |
491110 |
| Mail service, contract |
6370 |
491110 |
| Mail, bulk, truck transportation, contract |
6170 |
484110 |
| Mailing list compilers |
6480 |
511140 |
| Mailing machines (mfg.) |
3090 |
333313 |
| Mailing machines (whsl.) |
4170 |
423420 |
| Mailing service |
7590 |
561431 |
| Mailing tubes, paper fiber (mfg.) |
1880 |
322214 |
| Mailing tubes, plastic (mfg.) |
2370 |
326199 |
| Mainframe computers (mfg.) |
3360 |
334111 |
| Maintenance and service of portable toilets |
7790 |
562998 |
| Maintenance contractors, cleaning, buffing floors, washing windows, etc. |
7690 |
561790 |
| Maintenance contractors, house or building repairing, painting, etc. (const.) |
0770 |
238990 |
| Maintenance of way, railroad |
6290 |
488210 |
| Major appliances (ret.) |
4780 |
443111 |
| Malacca furniture (mfg.) |
3890 |
337125 |
| Malaria control |
7690 |
561710 |
| Malleable iron castings (mfg.) |
2770 |
331511 |
| Mallets, croquet (mfg.) |
3970 |
339920 |
| Mallets, polo (mfg.) |
3970 |
339920 |
| Mallets, printers (mfg.) |
2790 |
332212 |
| Mallets, rubber (mfg.) |
2390 |
326299 |
| Mallets, wooden (mfg.) |
3870 |
321999 |
| Malpractice insurance carriers |
6990 |
524126 |
| Malt (whsl.) |
4470 |
424490 |
| Malt extract (mfg.) |
1280 |
311942 |
| Malt extract (whsl.) |
4470 |
424490 |
| Malt shop (ret.) |
8680 |
722213 |
| Malt syrup (mfg.) |
1370 |
312120 |
| Malt, exc. extract (mfg.) |
1370 |
312120 |
| Malted milk (mfg.) |
1170 |
311514 |
| Malthouse (mfg.) |
1370 |
312120 |
| Malting (mfg.) |
1370 |
312120 |
| Mammogram center |
8180 |
621512 |
| Management consultant |
7390 |
541611 |
| Management consulting service |
7390 |
541613 |
| Management information systems (MIS) consultants |
7390 |
541610 |
| Management investment co. |
6970 |
523920 |
| Management service, real estate |
7070 |
531320 |
| Managers, conventions, trade fairs, and shows |
7780 |
561920 |
| Mandolins (mfg.) |
3980 |
339992 |
| Mandrels, lathe, metalworking machines (mfg.) |
3170 |
333515 |
| Manganese (ext.) |
0390 |
212299 |
| Manganese ore ground (mfg.) |
2590 |
327992 |
| Manganite (ext.) |
0390 |
212299 |
| Mangles, commercial (mfg.) |
3090 |
333312 |
| Mangles, household (mfg.) |
3470 |
335224 |
| Manhole (const.) |
0770 |
237130 |
| Manhole covers concrete (mfg.) |
2570 |
327390 |
| Manhole covers, metal (mfg.) |
2770 |
331511 |
| Manicure implements (mfg.) |
2790 |
332211 |
| Manicure preparations (mfg.) |
2280 |
325620 |
| Manicure salon or service |
8990 |
812113 |
| Manicure scissors (mfg.) |
2790 |
332211 |
| Manicuring supplies (whsl.) |
4270 |
423850 |
| Manifold forms (mfg.) |
1990 |
323116 |
| Manifolds, auto (mfg.) |
3570 |
336312 |
| Manila folders (mfg.) |
1890 |
322231 |
| Mannequin service |
7470 |
541890 |
| Mannequins (mfg.) |
3980 |
339999 |
| Mannequins (whsl.) |
4170 |
423440 |
| Manpower pool |
7580 |
561320 |
| Mantels, concrete (mfg.) |
2570 |
327390 |
| Mantels, wooden (mfg.) |
3870 |
321918 |
| Manufactured gas, utility |
0580 |
221210 |
| Manufactured homes (mfg.) |
3790 |
321991 |
| Manufactured homes, i.e., mobile (whsl.) |
4090 |
423390 |
| Manufactured ice (mfg.) |
1370 |
312113 |
| Manufacturer's agent or rep, product (whsl-brk.) |
4585 |
425120 |
| Manufacturer's sales agent or representative (whsl-brk.) |
4585 |
425120 |
| Manufacturers' agent or representative (whsl-brk.) |
4585 |
425120 |
| Manufacturers' institute |
9190 |
813910 |
| Manufacturing, no product specified |
3990 |
31-33 |
| Map drafting service |
7290 |
541340 |
| Map printing (mfg.) |
1990 |
323119 |
| Map publishing |
6480 |
511199 |
| Map service, aerial |
7290 |
541370 |
| Maple sap gathering |
0170 |
111998 |
| Maple sugar (mfg.) |
1280 |
311999 |
| Maple sugar farm |
0170 |
111998 |
| Maple syrup |
0170 |
111998 |
| Maple syrup evaporators (mfg.) |
3070 |
333111 |
| Maple syrup farm |
0170 |
111998 |
| Mapping co. |
7290 |
541370 |
| Maraschino cherries (mfg.) |
1090 |
311421 |
| Marble (ext.) |
0470 |
212311 |
| Marble (mfg.) |
2590 |
327991 |
| Marble (ret.) |
4870 |
444190 |
| Marble (whsl.) |
4090 |
423320 |
| Marble building stone (whsl.) |
4090 |
423320 |
| Marble church furnishings (mfg.) |
2590 |
327991 |
| Marble cut and shaped (mfg.) |
2590 |
327991 |
| Marble mill (mfg.) |
2590 |
327991 |
| Marble mosaics (mfg.) |
2590 |
327991 |
| Marble quarry (ext.) |
0470 |
212311 |
| Marble shed (mfg.) |
2590 |
327991 |
| Marble work, exterior, interior (const.) |
0770 |
238340 |
| Marbles, toy (mfg.) |
3970 |
339932 |
| March of Dimes \ n.s. |
9170 |
813212 |
| March of Dimes, fund raising |
9170 |
813212 |
| March of Dimes, research |
7460 |
541710 |
| Margarine (mfg.) |
1070 |
311225 |
| Marimba (mfg.) |
3980 |
339992 |
| Marina moorage |
8590 |
713930 |
| Marine anchorage |
6290 |
488390 |
| Marine animal oils (mfg.) |
1280 |
311711 |
| Marine boilers (mfg.) |
2870 |
332410 |
| Marine brokers |
6290 |
488390 |
| Marine cargo checkers |
6290 |
488390 |
| Marine cargo handling |
6290 |
488320 |
| Marine construction, non-shipbuilding (const.) |
0770 |
237110 |
| Marine divers |
6290 |
488390 |
| Marine engineering, consulting |
7290 |
541330 |
| Marine engineering, designing |
7290 |
541330 |
| Marine engines (mfg.) |
3180 |
333618 |
| Marine equipment (ret.) |
4680 |
441222 |
| Marine equipment (whsl.) |
4270 |
423860 |
| Marine fuses (mfg.) |
2290 |
325110 |
| Marine hardware (mfg.) |
2980 |
332510 |
| Marine horns, electric (mfg.) |
3370 |
334220 |
| Marine insurance co. |
6990 |
524126 |
| Marine lighting equipment (mfg.) |
3490 |
335911 |
| Marine machinery (whsl.) |
4270 |
423860 |
| Marine motors (ret.) |
4680 |
441222 |
| Marine paints (mfg.) |
2270 |
325510 |
| Marine propulsion machinery (whsl.) |
4270 |
423860 |
| Marine railway (mfg.) |
3680 |
336610 |
| Marine reinsurance co. |
6990 |
524130 |
| Marine reporting |
7490 |
541990 |
| Marine rigging (mfg.) |
3680 |
336610 |
| Marine salvaging |
6290 |
488330 |
| Marine service station (ret.) |
5090 |
447190 |
| Marine shipping |
6090 |
483111 |
| Marine signal flares (mfg.) |
2290 |
325110 |
| Marine supplies (ret.) |
4680 |
441222 |
| Marine supplies (whsl.) |
4270 |
423860 |
| Marine surveyors |
7290 |
541330 |
| Marine tenders, building (mfg.) |
3680 |
336611 |
| Marine tenders, repairing (mfg.) |
3680 |
336611 |
| Marine terminal |
6290 |
488390 |
| Marine towing co. |
6290 |
488310 |
| Marine transport |
6090 |
483111 |
| Marine ways (mfg.) |
3680 |
336611 |
| Marionettes (mfg.) |
3980 |
339999 |
| Markers, felt tip (mfg.) |
3980 |
339941 |
| Market (ret.) |
4970 |
445110 |
| Market forecasting service |
7490 |
541910 |
| Market gardens |
0170 |
111219 |
| Market reporting agency |
7490 |
541910 |
| Market research service |
7490 |
541910 |
| Marketing consulting |
7390 |
541613 |
| Marking devices, hand (mfg.) |
3980 |
339943 |
| Marking machinery (mfg.) |
3170 |
333518 |
| Marking stencils (mfg.) |
3980 |
339943 |
| Marl (ext.) |
0470 |
212312 |
| Marl pit (ext.) |
0470 |
212312 |
| Marmalade (mfg.) |
1090 |
311421 |
| Marquetry, wood (mfg.) |
3870 |
321999 |
| Marriage bureau |
9090 |
812990 |
| Marriage counseling service |
8370 |
624190 |
| Marsh buggy (mfg.) |
3680 |
336612 |
| Marshmallow creme (mfg.) |
1080 |
311340 |
| Marshmallows (mfg.) |
1080 |
311340 |
| Maser equipment (mfg.) |
3490 |
335999 |
| Masks, papier mache' (mfg.) |
1890 |
322299 |
| Mason work (const.) |
0770 |
238140 |
| Masonic hall |
9170 |
813410 |
| Masonite wallboard (mfg.) |
1870 |
322130 |
| Masonite woodcutting |
0270 |
113310 |
| Masonry (const.) |
0770 |
238140 |
| Masonry cement (mfg.) |
2570 |
327310 |
| Masons' materials (whsl.) |
4090 |
423310 |
| Masquerade costumes (mfg.) |
1680 |
315212 |
| Massage parlor |
8990 |
812199 |
| Mastic roofing composition (mfg.) |
2090 |
324122 |
| Masts, ship (mfg.) |
3680 |
336611 |
| Match block (mfg.) |
3870 |
321999 |
| Match books (mfg.) |
2290 |
325998 |
| Matches (mfg.) |
2290 |
325998 |
| Maternity home |
8290 |
623990 |
| Maternity shop (ret.) |
5170 |
448120 |
| Matrimonial agency |
9090 |
812990 |
| Matrix board (mfg.) |
1870 |
322130 |
| Matrix paper (mfg.) |
1870 |
322121 |
| Mats (grass etc.), pre-seeded |
0170 |
111998 |
| Mats wire (mfg.) |
2980 |
332618 |
| Mats, advertising (mfg.) |
3190 |
333293 |
| Mats, floor, woven (mfg.) |
1570 |
314110 |
| Mats, grass (mfg.) |
1570 |
314110 |
| Mats, jute (mfg.) |
1570 |
314110 |
| Mats, newspaper (mfg.) |
3190 |
333293 |
| Mats, plastic (mfg.) |
2370 |
326199 |
| Mats, rubber (mfg.) |
2390 |
326299 |
| Mats, twisted paper (mfg.) |
1570 |
314110 |
| Mats, varnished glass (mfg.) |
1490 |
313320 |
| Mattings, rubber (mfg.) |
2390 |
326299 |
| Mattocks (mfg.) |
2790 |
332212 |
| Mattress covers, exc. rubber (mfg.) |
1590 |
314129 |
| Mattress covers, rubber (mfg.) |
2390 |
326299 |
| Mattress protectors, exc. rubber (mfg.) |
1590 |
314129 |
| Mattress protectors, rubber (mfg.) |
2390 |
326299 |
| Mattress renovating |
8880 |
811420 |
| Mattresses (mfg.) |
3890 |
337910 |
| Mattresses (ret.) |
4770 |
442110 |
| Mattresses (whsl.) |
4080 |
423210 |
| Matzoth (mfg.) |
1270 |
311821 |
| Mausoleum |
9080 |
812220 |
| Mausoleum (const.) |
0770 |
236220 |
| Maxillofacial surgeon's office |
7980 |
621210 |
| Mayonnaise (mfg.) |
1280 |
311941 |
| Mc Ness products (ret.) |
5690 |
454390 |
| Meal, cottonseed (mfg.) |
1280 |
311911 |
| Meals on wheels |
8380 |
624210 |
| Meals, frozen (mfg.) |
1090 |
311412 |
| Measures, grain, wooden (mfg.) |
3870 |
321999 |
| Measuring instruments, electrical (mfg.) |
3380 |
334515 |
| Measuring machines (mfg.) |
2790 |
332212 |
| Measuring pumps (mfg.) |
3190 |
333913 |
| Measuring tools (mfg.) |
2790 |
332212 |
| Meat (whsl.) |
4470 |
424470 |
|
