| Patents for ETTCO Tool Co., Inc. |
Patents 1 -
15
of 26
      |
| Number | Date | Patentee | Title | Type |
| 1,758,656 | May 13, 1930 | G.W. Emrick | Tapping attachment | tapping heads and chucks |
| 1,764,289 | Jun. 17, 1930 | G.W. Emrick | Spindle for chuck devices | drill press chucks |
| 1,764,290 | Jun. 17, 1930 | G.W. Emrick | Chuck device | drill press chucks |
| 1,764,291 | Jun. 17, 1930 | G.W. Emrick | Drill chuck | drill press chucks |
| 1,775,992 | Sep. 16, 1930 | G.W. Emrick | Chuck device | tapping machines |
| 1,775,993 | Sep. 16, 1930 | G.W. Emrick | Chuck device | tapping machines |
| 1,775,994 | Sep. 16, 1930 | G.W. Emrick | Drill chuck | drill press chucks |
| 1,862,337 | Jun. 07, 1932 | G.W. Emrick | Tap, drill, and similar tool | drill press chucks |
| 1,862,352 | Jun. 07, 1932 | G.W. Emrick | Tool adapter | tapping heads and chucks |
| 1,862,370 | Jun. 07, 1932 | G.W. Emrick | Chuck device | tapping heads and chucks |
| 1,903,963 | Apr. 18, 1933 | G.W. Emrick | Multiple disk clutch | tapping machines |
| 1,988,967 | Jan. 22, 1935 | G.W. Emrick | Clutch device | tapping heads and chucks |
| 1,998,275 | Apr. 16, 1935 | G.W. Emrick | Multiple tapping device | tapping heads and chucks |
| 2,075,031 | Mar. 30, 1937 | G.W. Emrick | Chuck device | drill press chucks |
| 2,338,626 | Jan. 04, 1944 | G.W. Emrick | Tool chuck | drill press chucks |
