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| Patents for Andrew Hullinger | |||||
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| Number | Date | Patentee | Title | Type | |
| 469,701 | Mar. 01, 1892 | A. Hullinger | Improvements in Ratchet-Wrenches | wrench sockets | |
| 597,081 | Jan. 11, 1898 | A. Hullinger | Wrench | ratchet wrenches | |