| Patents for James Leffel & Co. |
Patents 31 -
40
of 40
      |
| Number | Date | Patentee | Title | Type |
| 1,962,383 | Jun. 12, 1934 | G.A. Biggs | Hydraulic Turbine | turbine water wheels |
| 1,962,384 | Jun. 12, 1934 | G.A. Biggs | Apparatus for Adjusting Hydraulic Turbine Runners | turbine water wheels |
| 1,962,385 | Jun. 12, 1934 | G.A. Biggs | Hydraulic Turbine Runner | turbine water wheels |
| 1,977,036 | Oct. 16, 1934 | G.A. Biggs | Hydraulic Turbine | turbine water wheels |
| 1,986,915 | Jan. 08, 1935 | G.A. Biggs | Hydraulic Turbine | turbine water wheels |
| 1,989,966 | Feb. 05, 1935 | G.A. Biggs | Hydraulic Turbine | turbine water wheels |
| 2,131,611 | Sep. 27, 1938 | G.A. Biggs | Turbine Pump | turbine water wheels |
| CA-437,142 | Sep. 24, 1946 | G.A. Biggs | Turbine Hydraulique | turbine water wheels |
| 2,420,853 | May 20, 1947 | G.A. Biggs | Hydraulic Turbine | turbine water wheels |
| 2,611,578 | Sep. 23, 1952 | G.A. Biggs | Sectionalized Case for Turbines and the Like | turbine water wheels |
