|
| 5232 | Babies clothing, retail | |
| 3699 | Baby carriages or strollers, manufacturing | |
| 5239 | Baby carriages, retail | |
| 1549 | Baby foods (including meats), canning | |
| 5122 | Baby foods, canned, wholesale | |
| 1549 | Baby formula, fresh, processed and bottled, manufacturing | |
| 5131 | Baby goods, wholesale | |
| 2519 | Baby pants, vulcanized rubber and rubberized fabric, manufacturing | |
| 2424 | Baby powder and baby oil, manufacturing | |
| 2919 | Baby scales, manufacturing | |
| 3610 | Baby seats for automobiles, manufacturing | |
| 7491 | Babysitter, registries | |
| 9500 | Babysitting (private households employing babysitters in the home) | |
| 8532 | Baby-sitting in own home (i.e., private day-care) | |
| 9500 | Baby-sitting in the child's home | |
| 4510 | Backfill, construction | |
| 2912 | Backflow preventors, plumbing, manufacturing | |
| 4550 | Backhoe (service), rental with operator | |
| 2924 | Backhoes, manufacturing | |
| 5239 | Backpacking, hiking and mountaineering equipment, retail | |
| 3610 | Backs for metal household furniture, manufacturing | |
| 1511 | Bacon, slab and sliced, made from purchased meat | |
| 1511 | Bacon, slab and sliced, produced in slaughtering plants | |
| 2423 | Bacterial vaccines, manufacturing | |
| 2423 | Bacterins (i.e., bacterial vaccines), manufacturing | |
| 8519 | Bacteriological laboratories (not manufacturing) | |
| 8519 | Bacteriological laboratories, diagnostic | |
| 5139 | Bacteriological medicines, wholesale | |
| 7310 | Bacteriological research and development laboratories | |
| 1729 | Badges, fabric, manufacturing | |
| 3699 | Badges, metal, manufacturing | |
| 2520 | Badges, plastics, manufacturing | |
| 3693 | Badminton equipment, manufacturing | |
| 2811 | Baffles, fabricated metal plate, manufacturing | |
| 1911 | Bag leather, manufacturing | |
| 2927 | Bag loading plants, ammunition, manufacturing | |
| 2919 | Bag opening, filling and closing machines, manufacturing | |
| 7495 | Bag packaging, contract service | |
| 3694 | Bagatelle tables, manufacturing | |
| 5220 | Bagel stores, without baking on the premises, retail | |
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