| Patents for ETTCO Tool & Machine Co., Inc. |
Patents 1 -
10
of 21
      |
| Picture | Number | Date | Patentee | Title |
| | 2,012,340 | Aug. 27, 1935 | G.W. Emrick | Tapping attachment |
| | 2,035,224 | Mar. 24, 1936 | G.W. Emrick | Tapping attachment |
| | 2,045,452 | Jun. 23, 1936 | G.W. Emrick | Clutch |
| | 2,045,453 | Jun. 23, 1936 | G.W. Emrick | Method of making friction clutch elements |
| | 2,079,371 | May 04, 1937 | G.W. Emrick | Tapping machine |
| | 2,079,372 | May 04, 1937 | G.W. Emrick | Tapping machine |
| | 2,141,209 | Dec. 27, 1938 | G.W. Emrick | Tapping attachment |
| | 2,162,250 | Jun. 13, 1939 | G.W. Emrick | Clutch mechanism for tapping attachments |
| | 2,162,251 | Jun. 13, 1939 | G.W. Emrick | Tapping attachment |
| | 2,213,579 | Sep. 03, 1940 | G.W. Emrick | Variable multiple head |
