| Patents for Heinrich Tools Inc. |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 2,362,067 | Nov. 07, 1944 | R.O. Heinrich | Quick-adjustable vise | vise mechanisms |
| 2,392,820 | Jan. 15, 1946 | R.O. Heinrich | Vise lock | vise mechanisms |
| 2,424,313 | Jul. 22, 1947 | R.O. Heinrich | Quick locking vise | machinist vises |
| 2,612,805 | Oct. 07, 1952 | R.O. Heinrich | Locking plate adjusting means for vise beams | vise mechanisms |
| 2,638,804 | May 19, 1953 | R.O. Heinrich | Actuating means for advancing and locking jaws of vises and like fixtures | machinist vises |
| 2,679,177 | May 25, 1954 | F.G. Gepfert | Precision vise of the double-acting type | machinist vises |
| 2,764,046 | Sep. 25, 1956 | R.O. Heinrich | Initial adjusting mechanism for gripping members | machinist vises |
| 2,994,538 | Aug. 01, 1961 | L. Farnsworth | Collet chuck having an axially stationary collet | work holding |
| 2,998,259 | Aug. 29, 1961 | L. Farnsworth | Collet and chuck therefor | work holding |
| 3,143,356 | Aug. 04, 1964 | P.E. Pray | Powerhead | work holding |
