| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents Granted on 1947-05-20 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 2,420,853 | May 20, 1947 | G.A. Biggs | Hydraulic Turbine | turbine water wheels | |
| 2,420,984 | May 20, 1947 | R.H. Shepard | Hydraulic Pump | hydraulic pumps | |