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| All Patents in class 184/33 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 706,570 | Aug. 12, 1902 | O.G. Kipp | Lubricator | |
 | 796,659 | Aug. 08, 1905 | O.G. Kipp, deceased (Estate of) | Lubricator | |
| 2,436,492 | Feb. 24, 1948 | R.H. Shepard | Pumping Units for Mechanical Lubricators | ||
| 2,523,653 | Sep. 26, 1950 | C.F. Erikson | Force Feed Lubrication | ||