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| All Patents in class 476/12 | |||||
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| Number | Date | Patentee | Title | Type | |
| 992,700 | May 16, 1911 | C.G. Wilderson | Variable-feed mechanism | woodworking machine stockfeeding mechanisms | |
| 1,176,180 | Mar. 21, 1916 | J.J. Thacher | Grinding-Machine | ||
| 2,795,146 | Jun. 11, 1957 | U.A. Alfredeen | Reversible Rotary Tool Holder | tool holders | |