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| Patents for John B. Sinnett | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 2,157,191 | May 09, 1939 | J.B. Sinnett | Method of and means for cooling motors | |
 | 2,164,667 | Jul. 04, 1939 | J.B. Sinnett | Motor switch | |