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| All Patents in class 184/6.24 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 854,874 | May 28, 1907 | J.E. Crandall | Lubricator | ||
| 2,226,431 | Dec. 24, 1940 | E.D. Vancil, F.A. Hassman | Lubricating Mechanism for Machine Tools | ||
| 2,476,238 | Jul. 12, 1949 | E.P. Bullard | Pump and Motor Transmission with Fluid Purifier | ||