| Patents for Sol Einstein |
Patents 31 -
45
of 47
      |
| Number | Date | Patentee | Title | Type |
| 1,825,719 | Oct. 06, 1931 | S. Einstein | Control Mechanism | machine tool controls |
| 1,842,375 | Jan. 26, 1932 | S. Einstein | Grinding Machinery | grinding machines |
| 1,845,865 | Feb. 16, 1932 | L.F. Nenninger, S. Einstein | Machine Tool | grinding machines |
| 1,846,956 | Feb. 23, 1932 | F. Haas, L.F. Nenninger, S. Einstein | Grinding Machinery | grinding machines |
| 1,849,868 | Mar. 15, 1932 | S. Einstein | Grinder Wheel Oscillator | grinder dressers |
| 1,864,486 | Jun. 21, 1932 | S. Einstein | Art of Grinding | grinding machines |
| 1,871,504 | Aug. 16, 1932 | L.F. Nenninger, S. Einstein | Truing Device for the Wheels of Grinding Machines | grinding machines |
| 1,877,500 | Sep. 13, 1932 | H.R. Isler, S. Einstein | Hydraulic Grinder | grinding machines |
| 1,877,828 | Sep. 20, 1932 | S. Einstein | Milling Machine | milling machines |
| 1,901,290 | Mar. 14, 1933 | L.F. Nenninger, S. Einstein | Milling Machine | milling machines |
| 1,938,757 | Dec. 12, 1933 | F.S. Haas, S. Einstein | Grinding Machine | grinding machines |
| 1,975,947 | Oct. 09, 1934 | S. Einstein, H.R. Isler | Machine Tool | tool grinders |
| 1,976,119 | Oct. 09, 1934 | S. Einstein | Grinding Machine | grinding machines |
| 1,982,287 | Nov. 27, 1934 | F.S. Haas, S. Einstein | Grinding Machine | grinding machines |
| 1,991,799 | Feb. 19, 1935 | C. Booth, S. Einstein | Grinding Machine | grinding machines |
