NLRB Stats Archive › Annual Reports › FY1951 › Cases received — by industry
Cases received — by industry
| Industrial group | All cases | Unfair labor practice cases — CA | Unfair labor practice cases — CB | Unfair labor practice cases — CC | Unfair labor practice cases — CD | Representation cases — RC | Representation cases — RM | Representation cases — RD | Union-shop authorization cases |
|---|---|---|---|---|---|---|---|---|---|
| Total | 22,298 | 4,164 | 858 | 167 | 72 | 9,460 | 448 | 339 | 6,790 |
| Manufacturing | 14,708 | 2,604 | 411 | 71 | 10 | 6,306 | 287 | 216 | 4,803 |
| Ordnance and accessories | 17 | 2 | 0 | 0 | 0 | 9 | 0 | 0 | 6 |
| Food and kindred products | 2,155 | 262 | 75 | 23 | 0 | 959 | 69 | 35 | 732 |
| Tobacco manufactures | 51 | 8 | 2 | 0 | 0 | 23 | 0 | 0 | 18 |
| Textile-mill products | 641 | 184 | 17 | 1 | 0 | 250 | 26 | 12 | 150 |
| Apparel and other finished products made from fabrics and similar materials | 851 | 188 | 37 | 5 | 0 | 405 | 21 | 6 | 189 |
| Lumber and wood products | 855 | 159 | 17 | 2 | 0 | 343 | 23 | 11 | 301 |
| Furniture and fixtures | 617 | 89 | 24 | 2 | 0 | 280 | 8 | 8 | 206 |
| Paper and allied products | 382 | 56 | 6 | 1 | 0 | 205 | 4 | 7 | 103 |
| Printing, publishing, and allied industries | 632 | 103 | 19 | 3 | 0 | 278 | 7 | 7 | 215 |
| Chemicals and allied products | 987 | 96 | 12 | 1 | 0 | 599 | 13 | 11 | 257 |
| Products of petroleum and coal | 250 | 52 | 6 | 1 | 0 | 137 | 3 | 6 | 44 |
| Rubber products | 168 | 24 | 5 | 1 | 0 | 87 | 5 | 3 | 51 |
| Leather and leather products | 256 | 26 | 8 | 0 | 0 | 92 | 11 | 1 | 86 |
| Stone, clay, and glass products | 547 | 102 | 13 | 5 | 1 | 217 | 12 | 7 | 196 |
| Primary metal industries | 987 | 196 | 24 | 5 | 1 | 371 | 8 | 16 | 364 |
| Fabricated metal products except transportation equipment | 1,509 | 245 | 31 | 5 | 3 | 609 | 15 | 15 | 588 |
| Machinery (except electrical) | 1,503 | 219 | 29 | 4 | 1 | 723 | 16 | 13 | 504 |
| Electrical machinery, equipment, and supplies | 832 | 170 | 34 | 3 | 0 | 348 | 9 | 7 | 280 |
| Transportation equipment | 763 | 111 | 26 | 0 | 1 | 334 | 11 | 14 | 264 |
| Professional, scientific, and controlling instruments | 268 | 41 | 14 | 1 | 0 | 125 | 6 | 4 | 76 |
| Miscellaneous manufacturing | 707 | 132 | 17 | 2 | 0 | 283 | 24 | 9 | 239 |
| Agriculture, forestry, and fisheries | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mining | 302 | 70 | 24 | 10 | 1 | 130 | 8 | 6 | 98 |
| Wholesale trade | 1,507 | 252 | 42 | 12 | 7 | 231 | 6 | 9 | 950 |
| Retail trade | 1,959 | 365 | 44 | 19 | 0 | 951 | 43 | 35 | 547 |
| Finance, insurance, and real estate | 136 | 36 | 8 | 0 | 1 | 59 | 0 | 2 | 30 |
| Transportation, communication, and other public utilities | 2,158 | 534 | 110 | 32 | 16 | 767 | 31 | 28 | 640 |
| Services | 675 | 141 | 29 | 2 | 0 | 308 | 15 | 14 | 155 |
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Source data: U.S. NLRB Annual Reports (public domain). Reconstruction by NLRB Stats Archive. Updated June 2026.