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| Patents for Frank E. Ohlen | |||||
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| Number | Date | Patentee | Title | Type | |
| 222,304 | Dec. 02, 1879 | R.H. Osgood | Improvement in inserted saw-teeth | insertable saw teeth | |
| 262,821 | Aug. 15, 1882 | J. Ohlen | Saw-handle | crosscut saw handles | |