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| Patents for Watts T. Estabrook | |||||
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| Number | Date | Patentee | Title | Type | |
| 794,044 | Jul. 04, 1905 | C.A. Paisley | Wrench | axle nut wrenches that lock nut to wheel hub | |
| 919,260 | Apr. 20, 1909 | E.D. Smith | Wrench | ratchet wrenches | |