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All Patents in class 411/910 | |||||
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Number | Date | Patentee | Title | Type | |
74,490 | Feb. 18, 1868 | J.A. Bidwell | Screwdriver and Countersink | screwdriver blades | |
2,372,269 | Mar. 27, 1945 | L.J. Golan | Theft Resisting Nut and Wrench Combination | socket wrenches |