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| Patents for Sylver J. Gonya | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-101,064 | Sep. 18, 1906 | S.J. Gonya, P.B. Clark, A.E. Stearns, L.D. Janell | Machine a Poinconnage et Rognage | metal punching machines | |