| Patents for Frederick S. Haas |
Patents 1 -
15
of 50
      |
| Number | Date | Patentee | Title | Type |
| 1,862,851 | Jun. 14, 1932 | F.S. Haas | Grinding Machinery | grinding machines |
| 1,877,505 | Sep. 13, 1932 | B.A. Kearns, F.S. Haas | Grinding Machine | grinding machines |
| 1,891,662 | Dec. 20, 1932 | F.S. Haas, C. Booth | Machine Tool | grinding machines |
| 1,905,224 | Apr. 25, 1933 | C. Booth, F.S. Haas | Grinding Machinery | grinding machines |
| 1,938,757 | Dec. 12, 1933 | F.S. Haas, S. Einstein | Grinding Machine | grinding machines |
| 1,938,762 | Dec. 12, 1933 | F.S. Haas | Grinding Machine | cylindrical grinders |
| 1,938,763 | Dec. 12, 1933 | F.S. Haas | Grinding Machinery | grinding machines |
| 1,938,764 | Dec. 12, 1933 | H. Fritschi, F.S. Haas | Grinding Machine | grinding machines |
| 1,938,765 | Dec. 12, 1933 | F.S. Haas | Grinding Machine | grinding machines |
| 1,952,130 | Mar. 27, 1934 | F.S. Haas, R.E. Harrison | Brake Shoe Grinder | grinding machines |
| 1,952,432 | Mar. 27, 1934 | F.S. Haas | Grinding Machine | grinding machines |
| 1,965,234 | Jul. 03, 1934 | F.S. Haas | Grinding Machine | grinding machines |
| 1,965,235 | Jul. 03, 1934 | F.S. Haas | Grinding Machine | grinding machines |
| 1,972,826 | Sep. 04, 1934 | F.S. Haas | Grinding Machine | grinding machines |
| 1,976,122 | Oct. 09, 1934 | F.S. Haas | Hydraulic Drive for Grinding Machines | grinding machines |
