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| All Patents in class 118/317 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,361,007 | Dec. 07, 1920 | N.E. Brown | Center cleaning and oiling device | industrial machine lubrication | |
| 2,892,438 | Jun. 30, 1959 | V.D. Hery | Pan Spraying Machine | spraying apparatus | |