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| Patents for Samuel W. Martin | |||||
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| Number | Date | Patentee | Title | Type | |
| 177,410 | May 16, 1876 | S.W. Martin | Screw Tap | taps and dies | |
| 213,916 | Apr. 01, 1879 | S.W. Martin | Ratchet-Wrench | tap wrenches and die stocks | |
| 293,761 | Feb. 19, 1884 | S.W. Martin | Changeable Speed Gearing | metalworking variable speed mechanisms | |