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| All Patents in class 428/114 | |||||
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| Number | Date | Patentee | Title | Type | |
| 842,411 | Jan. 29, 1907 | O. Messinger | Straight-edge | ||
| 5,394,773 | Mar. 07, 1995 | P.M. Machmeier, G.A. Zurbuchen | Composite Hand Tool | nut wrenches | |