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| Patents for John G. Gebhard | |||||
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| Number | Date | Patentee | Title | Type | |
| 270X | Feb. 04, 1800 | J.G. Gebhard | Extracting oil from palma christi | purifying oil | |
| 174,006 | Feb. 22, 1876 | A. Rickart | Improvement in horse-rakes | hay or straw rakes | |