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| Patents for Joseph Shafer | |||||
| Number | Date | Patentee | Title | Type | |
| 561,823 | Jun. 09, 1896 | J. Shafer | Wrench | axle nut wrenches | |
| CA-53,058 | Aug. 01, 1896 | J. Shafer | Wrench | axle nut wrenches | |