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| Patents for P. C. Dieterich | |||||
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| Number | Date | Patentee | Title | Type | |
| 226,339 | Apr. 06, 1880 | J. Moffet | Monkey-Wrench | screw adjust wrenches | |
| 240,882 | May 03, 1881 | J.W. Calef | Lead Seal Press | pliers | |
| 255,853 | Apr. 04, 1882 | J.C. Gunn | Wrench | ratchet wrenches | |
| 258,673 | May 30, 1882 | J.E. Preston | Wrench | wrench jaw components | |
| 260,057 | Jun. 27, 1882 | G.W. Simms | Horseshoe | auxiliary wrenches | |
| 266,595 | Oct. 24, 1882 | W.J. Owen | Screw and Pipe Wrench | ratchet wrenches | |