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| All Patents in class 417/441 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,297,035 | Mar. 11, 1919 | J.M. Stratton | Pump | ||
| 7,153,106 | Dec. 26, 2006 | J.P. Cornwell | Air Compressor Unit Inlet Control | air compressors | |