NLRB Stats Archive › Annual Reports › FY1973 › Industrial distribution of cases received
| Industrial group | All cases | Unfair labor practice cases — All C | Unfair labor practice cases — CA | Unfair labor practice cases — CB | Unfair labor practice cases — CC | Unfair labor practice cases — CD | Unfair labor practice cases — CE | Unfair labor practice cases — CP | Representation cases — All R | Representation cases — RC | Representation cases — RM | Representation cases — RD | Union-shop Deauthorization cases — UD | Amendment-of-Certification cases — AC | Unit-Clarification cases — UC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Food and kindred products | 2,009 | 1,227 | 848 | 333 | 28 | 8 | 0 | 10 | 764 | 656 | 48 | 65 | 6 | 0 | 0 |
| Tobacco manufactures | 23 | 17 | 13 | 4 | 0 | 0 | 0 | 0 | 6 | 4 | 1 | 1 | 0 | 0 | 0 |
| Textile mill products | 519 | 374 | 300 | 60 | 4 | 0 | 0 | 10 | 144 | 116 | 19 | 5 | 2 | 0 | 0 |
| Apparel and other finished products made from fabric and similar materials | 567 | 405 | 290 | 101 | 5 | 2 | 0 | 6 | 159 | 130 | 10 | 13 | 3 | 0 | 0 |
| Lumber and wood products (except furniture) | 737 | 395 | 311 | 63 | 13 | 2 | 0 | 2 | 335 | 300 | 16 | 19 | 5 | 0 | 2 |
| Furniture and fixtures | 549 | 340 | 253 | 75 | 7 | 2 | 0 | 0 | 202 | 180 | 12 | 10 | 4 | 0 | 3 |
| Paper and allied products | 600 | 309 | 248 | 55 | 3 | 3 | 0 | 0 | 237 | 210 | 10 | 14 | 1 | 0 | 3 |
| Printing, publishing, and allied industries | 1,000 | 783 | 455 | 243 | 62 | 13 | 1 | 8 | 499 | 383 | 70 | 44 | 9 | 0 | 4 |
| Chemicals and allied products | 782 | 436 | 327 | 96 | 20 | 7 | 0 | 0 | 324 | 271 | 23 | 30 | 7 | 0 | 8 |
| Petroleum refining and related industries | 281 | 166 | 127 | 33 | 5 | 0 | 0 | 1 | 78 | 73 | 2 | 3 | 0 | 0 | 0 |
| Rubber and miscellaneous plastics products | 529 | 251 | 183 | 53 | 14 | 0 | 0 | 0 | 260 | 234 | 15 | 9 | 6 | 0 | 0 |
| Leather and leather products | 173 | 118 | 84 | 31 | 3 | 0 | 0 | 0 | 47 | 42 | 3 | 2 | 2 | 0 | 6 |
| Stone, clay, glass, and concrete products | 1,049 | 709 | 347 | 133 | 33 | 14 | 0 | 11 | 317 | 271 | 20 | 26 | 12 | 0 | 8 |
| Primary metal industries | |||||||||||||||
| Fabricated metal products (except machinery and transportation equipment) | 1,855 | 1,246 | 883 | 309 | 20 | 11 | 4 | 19 | 591 | 515 | 31 | 45 | 6 | 4 | 8 |
| Machinery (except electrical) | 1,673 | 1,035 | 754 | 202 | 88 | 9 | 5 | 4 | 647 | 577 | 20 | 50 | 4 | 0 | 3 |
| Electrical and electronic machinery, equipment, and supplies | 1,161 | 783 | 566 | 165 | 29 | 6 | 0 | 1 | 363 | 327 | 9 | 17 | 8 | 1 | 6 |
| Aircraft and parts | 313 | 255 | 140 | 99 | 1 | 0 | 0 | 0 | 55 | 50 | 0 | 1 | 4 | 0 | 1 |
| Ship and boat building and repairing | 129 | 101 | 70 | 31 | 0 | 0 | 0 | 0 | 26 | 23 | 0 | 0 | 1 | 0 | 1 |
| Automotive and other transportation equipment | 1,349 | 945 | 652 | 270 | 17 | 1 | 1 | 0 | 397 | 362 | 13 | 23 | 0 | 0 | 7 |
| Professional, scientific, and controlling instruments | 306 | 187 | 129 | 52 | 3 | 0 | 0 | 0 | 115 | 98 | 5 | 11 | 0 | 0 | 4 |
| Miscellaneous manufacturing industries | 996 | 638 | 444 | 176 | 13 | 4 | 0 | 1 | 350 | 294 | 21 | 29 | 6 | 0 | 2 |
| Manufacturing — Total | 18,020 | 11,413 | 8,093 | 2,852 | 268 | 87 | 21 | 92 | 6,361 | 5,509 | 331 | 521 | 91 | 49 | 116 |
| Metal mining | 95 | 59 | 48 | 10 | 0 | 0 | 0 | 0 | 32 | 26 | 0 | 6 | 1 | 0 | 3 |
| Coal mining | 139 | 117 | 75 | 36 | 6 | 0 | 0 | 0 | 22 | 19 | 0 | 3 | 0 | 0 | 0 |
| Oil and gas extraction | 56 | 36 | 24 | 8 | 4 | 0 | 0 | 0 | 16 | 16 | 0 | 0 | 1 | 0 | 0 |
| Mining and quarrying of nonmetallic minerals (except fuels) | 117 | 67 | 43 | 16 | 5 | 3 | 0 | 0 | 44 | 37 | 1 | 5 | 0 | 0 | 0 |
| Mining — Total | 407 | 289 | 190 | 79 | 26 | 0 | 0 | 0 | 116 | 97 | 1 | 14 | 2 | 0 | 3 |
Source data: U.S. NLRB Annual Reports (public domain). Reconstruction by NLRB Stats Archive. Updated June 2026.