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| Patents for O. C. Avisus | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,082,880 | Dec. 30, 1913 | J.S. Knowlson | Mechanical hammer | |
 | 1,101,516 | Jun. 30, 1914 | J.E. Ahlvin | Carpenter's Marking Device | |