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| Patents for E. Wolff | |||||
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| Number | Date | Patentee | Title | Type | |
| 198,291 | Dec. 18, 1877 | H.T. Gates | Combined Wrench and Vise | ratchet wrenches | |
| 201,709 | Mar. 26, 1878 | J. Schofield | Flooring Clamp | floor clamps | |