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| All Patents in class 417/288 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,423 | Feb. 01, 1848 | R. Dillon | Hydraulic Engine | hydraulic pumps | |
| 1,769,898 | Jul. 01, 1930 | W.E. Mathews | Unloading System for Compressors | air compressors | |
| 1,945,632 | Feb. 06, 1934 | R.E. Flanders | Machine Tool and Hydraulic Feed Mechanism Therefor | hydraulic apparatus | |