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| Patents for Belknap Motor Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 437,640 | Sep. 30, 1890 | G.W. Brown | Grinding-machine | |
| 518,913 | Apr. 24, 1894 | G.W. Brown | Commutator-brush | ||
 | 599,892 | Mar. 01, 1898 | W.H. Chapman | Electric regulator for dynamos | |
 | 613,853 | Nov. 08, 1898 | W.H. Chapman | Electric regulators | |