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| All Patents in class 60/479 | |||||
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| Number | Date | Patentee | Title | Type | |
| 876,920 | Jan. 14, 1908 | J. Weeks | Hydraulic jack, punch, and similar machine | hydraulic jacks | |
| 2,255,984 | Sep. 16, 1941 | E.M. Pfauser | Hydraulic Pump System | hydraulic pumps | |