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| All Patents in class 475/332 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 25,497 | Sep. 20, 1859 | L.R. Faught | Horse-power machine | |
| 3,316,772 | May 02, 1967 | G.H. Jones | Multiple Pinion Wound Up Power Drive | ||