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| Patents for Andrew A. Loetscher | |||||
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| Picture | Number | Date | Patentee | Title | |
| 725,461 | Apr. 14, 1903 | A.A. Loetscher | Sash-stile plowing and boring machine | ||
 | 727,651 | May 12, 1903 | A.A. Loetscher | Column-clamp | |