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| Patents for Fred S. Greenleaf | |||||
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| Number | Date | Patentee | Title | Type | |
| 417,829 | Dec. 24, 1889 | J.B. Lowell | Wrench | ratchet wrenches | |
| 543,647 | Jul. 30, 1895 | C.H. Benjamin, C.W. Glidden | Grinding Machine | shoe and boot making machines | |
| 952,223 | Mar. 15, 1910 | B.W. Woodward | Wrench | screw adjust wrenches | |
| D42,343 | Mar. 19, 1912 | J.H. Vinton | Housing For Wrenches | wrench handle components | |