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| All Patents in class 477/22 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,084,590 | Jan. 13, 1914 | H.L. Zabriskie | Electric motor | ||
| 1,857,905 | May 10, 1932 | C.G. Wilderson | Control mechanism | woodworking machine mechanisms | |