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| All Patents in class 137/599.08 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,463,861 | Aug. 07, 1923 | F.D. Winkley | Lubricating apparatus | industrial machine lubrication | |
| 2,912,011 | Nov. 10, 1959 | F.G. Burg | Valve structure | drill presses | |