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| Patents for John D. Gayer | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 2,463,097 | Mar. 01, 1949 | J.D. Gayer | Brush holder | |
 | 2,501,936 | Mar. 28, 1950 | J.D. Gayer | Variable-speed drive | |
 | 2,541,235 | Feb. 13, 1951 | J.D. Gayer | Fan arrangement for electrical devices | |
 | 2,624,855 | Jan. 06, 1953 | J.D. Gayer | Fan arrangement for electrical devices | |