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| All Patents in class 417/338 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,189,766 | Jul. 04, 1916 | J.T. Wilkin | Impeller pump or blower and driver therefor | blowers | |
| 2,035,096 | Mar. 24, 1936 | H. Schneider | Engine Accessory Drive | internal combustion engines | |