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| Patents for Augustus R. Ehlers | |||||
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| Number | Date | Patentee | Title | Type | |
| 78,443 | Jun. 02, 1868 | A.R. Ehlers | Improvement in sawmills | reciprocating sawmills | |
| RE6,185 | Dec. 22, 1874 | A.R. Ehlers | Improvement in sawmills | reciprocating sawmills | |