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| All Patents in class 476/57 | |||||
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| Number | Date | Patentee | Title | Type | |
| 257,384 | May 02, 1882 | T.J. Reamy | Feed mechanism for saw-mills | sawmill feed works | |
| 461,253 | Oct. 13, 1891 | W.F. Barnes | Drilling-machine | drill presses | |
| 542,694 | Jul. 16, 1895 | F.W. Hoefer, D.C. Stover | Sensitive drill press | drill presses | |
| 921,937 | May 18, 1909 | F.J. Zecher | Gearing | drill presses | |