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| Patents for Robert L. Fosburgh | |||||
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| Number | Date | Patentee | Title | Type | |
| 162,866 | May 04, 1875 | J.J. Squire | Clamp | vises | |
| 455,484 | Jul. 07, 1891 | J.F. Milligan, R.L. Fosburgh | Reversible Ratchet | ratchet wrenches | |