| Patents for Frederick S. Haas |
Patents 46 -
51
of 51
      |
| Number | Date | Patentee | Title | Type |
| 2,272,048 | Feb. 03, 1942 | F.S. Haas | Headstock | grinding machines |
| 2,360,671 | Oct. 17, 1944 | A.C. Janke, C.O. Graves, F.S. Haas | Surface Grinder | grinding machines |
| 2,478,562 | Aug. 09, 1949 | F.S. Haas, G.W. Binns | Grinding Machine | cylindrical grinders |
| 2,622,375 | Dec. 23, 1952 | W. Trible, F.S. Haas | Grinding Machine | surface grinders |
| 2,641,873 | Jun. 16, 1953 | F.S. Haas | Automatic Truing Mechanism | grinder dressers |
| 2,665,681 | Jan. 12, 1954 | F.S. Haas | Truing Mechanism | grinder dressers |
