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| Patents for William A. Seidemann | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,518,224 | Dec. 09, 1924 | J. Johnson, W.A. Seidemann | Tap Wrench | ||
| 1,772,524 | Aug. 12, 1930 | W.A. Seidemann | Ratchet Wrench | ratchet wrenches | |