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| Patents for E. G. Hoffman | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 754,625 | Mar. 15, 1904 | J.A. Traut | Miter-box | |
 | 778,922 | Jan. 03, 1905 | J.A. Traut | Cutter Fastening for Spokeshaves | |
 | 815,389 | Mar. 20, 1906 | J.A. Traut | Try-Square | |
| 817,936 | Apr. 17, 1906 | H.P. Richards | Chuck | ||
 | 827,480 | Jul. 31, 1906 | J.A. Traut | Extension Rule | |
 | 899,203 | Sep. 22, 1908 | F.E. Carlson | Bit Extension | |
 | 941,816 | Nov. 30, 1909 | E.A. Schade | Bench-Dog | |