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| Patents for George Bartle | |||||
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| Number | Date | Patentee | Title | Type | |
| 134,237 | Dec. 24, 1872 | C.H. Amidon | Improvement in drills | eggbeater drills | |
| 134,623 | Jan. 07, 1873 | C.H. Amidon | Baby Carriages | ||
| 140,451 | Jul. 01, 1873 | C.H. Amidon | Improvement in drill and bit stocks | hand drills | |