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| All Patents in class 74/578 | |||||
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| Number | Date | Patentee | Title | Type | |
| 814,319 | Mar. 06, 1906 | W.A. Peck | Ratchet-movement | ratchet braces | |
| 957,696 | May 10, 1910 | E.S. Marks | Bit-brace | ||
| 1,286,360 | Dec. 03, 1918 | G.O. Leopold | Ratchet Mechanism | ||
| 1,957,462 | May 08, 1934 | W.C. Kress | Ratchet Wrench | ratchet wrenches | |