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| Patents for Robert S. Allyn | |||||
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| Number | Date | Patentee | Title | Type | |
| 707,368 | Aug. 19, 1902 | A.W. Stanley, J.A. Traut | Corrugated Plane Iron | plane lever caps | |
| 758,329 | Apr. 26, 1904 | C.E. Mitchell | Ratchet Brace | ratchet braces | |