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| Patents for Samuel Ker | |||||
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| Number | Date | Patentee | Title | Type | |
| 429,633 | Jun. 10, 1890 | C.A. Maurer | Bolt Holder | clamps | |
| 436,073 | Sep. 09, 1890 | G.E. Clow, B. Clow | Nut Wrench | screw adjust wrenches | |