| Patents for Frederick S. Haas |
Patents 16 -
30
of 51
      |
| Number | Date | Patentee | Title | Type |
| 1,976,122 | Oct. 09, 1934 | F.S. Haas | Hydraulic Drive for Grinding Machines | grinding machines |
| 1,976,123 | Oct. 09, 1934 | F.S. Haas | Grinding Machinery | grinding machines |
| 1,976,124 | Oct. 09, 1934 | F.S. Haas | Machine Tool | grinding machines |
| 1,976,125 | Oct. 09, 1934 | F.S. Haas | Grinding Machine | grinding machines |
| 1,976,130 | Oct. 09, 1934 | F.S. Haas, B.A. Kearns | Grinding Machine | grinding machines |
| 1,978,132 | Oct. 23, 1934 | F.S. Haas | Grinding Machine | grinding machines |
| 1,982,287 | Nov. 27, 1934 | F.S. Haas, S. Einstein | Grinding Machine | grinding machines |
| 1,982,297 | Nov. 27, 1934 | F.S. Haas | Grinding Machine | grinding machines |
| 1,982,298 | Nov. 27, 1934 | F.S. Haas | Grinding Machine | grinding machines |
| 1,993,822 | Mar. 12, 1935 | F.S. Haas, R.E. Harrison, G.W. Binns, S.E. Bergstrum | Grinding Machine | grinding machines |
| 1,999,778 | Apr. 30, 1935 | F.S. Haas, W. Peaslee | Grinding Machinery | grinding machines |
| 2,004,426 | Jun. 11, 1935 | F.S. Haas, C. Booth | Grinding Machine | grinding machines |
| 2,006,570 | Jul. 02, 1935 | F.S. Haas | Grinding Machinery | grinding machines |
| 2,010,359 | Aug. 06, 1935 | F.S. Haas | Grinding Machine | grinding machines |
| 2,012,065 | Aug. 20, 1935 | R.L. Goetzel, F.S. Haas | Grinding Machine | grinding machines |
