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| All Patents of Type: vane pumps | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,460,047 | Jan. 25, 1949 | A. Von Wangenheim | Vane Pump and Pressure Control Means | vane pumps | |
| 2,497,247 | Feb. 14, 1950 | A. Von Wangenheim | Pump and Pressure Regulating Unit | vane pumps | |