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| All Patents in class 92/92 | |||||
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| Number | Date | Patentee | Title | Type | |
| 87 | Nov. 26, 1836 | C.V. Card | Frictionless Pump | pumps | |
| 1,659,034 | Feb. 14, 1928 | B.A. Linderman | Fluid-pressure brake system | vehicle brakes | |