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| Patents for Christopher Eisenhardt | |||||
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| Number | Date | Patentee | Title | Type | |
| 150,678 | May 12, 1874 | C. Eisenhardt | Improvement in handsaw handles | saw handles | |
| 327,776 | Oct. 06, 1885 | C. Eisenhardt | Handle for Cross Cut Saws | crosscut saw handles | |
| 395,218 | Dec. 25, 1888 | C. Eisenhardt | Handle for Crosscut-Saws | crosscut saw handles | |