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| All Patents in class 464/10 | |||||
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| Number | Date | Patentee | Title | Type | |
| 622,160 | Mar. 28, 1899 | W.P. Norton | Friction Driving Device for Shaping or other Machines | metal shapers | |
| 2,952,146 | Sep. 13, 1960 | J.P. Bruck | Slip clutch | handheld circular saws | |