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| All Patents in class 411/924 | |||||
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| Number | Date | Patentee | Title | Type | |
| 15,379 | Jul. 22, 1856 | J. Mason | Improved Cutter Stock for Metal Planers | metal planers | |
| 597,000 | Jan. 11, 1898 | C.A. Higbee | Pipe coupling | ||
| 2,151,255 | Mar. 21, 1939 | E.J. Witchger | Spring Nut | ||