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| All Patents in class 184/27.3 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 791,636 | Jun. 06, 1905 | C.W. Manzel | Oil Pump | |
 | 798,009 | Aug. 22, 1905 | J. Sherry, J. Buckley | Lubricator | |
 | 844,324 | Feb. 19, 1907 | J. Sherry, J. Buckley | Lubricator | |
| 845,416 | Feb. 26, 1907 | C.B. Hodges | Device for Visually Feeding Measured Quantities of Liquid | ||
| 1,171,825 | Feb. 15, 1916 | R. Wood | Lubricator | ||
 | 1,323,603 | Dec. 02, 1919 | A.W. Manzel | Force Feed Lubricator | |