| All Patents in class 74/745 |
Patents 1 -
10
of 18
      |
| Picture | Number | Date | Patentee | Title |
 | 430,082 | Jun. 10, 1890 | F.B. Miles | Drilling-machine |
 | 725,141 | Apr. 14, 1903 | C.F. Laur, A.E. Robinson | Speed Changing Mechanism |
 | 1,250,363 | Dec. 18, 1917 | W.L. Schellenbach | Initial driving mechanism |
| | 1,632,671 | Jun. 14, 1927 | R.A. Norling | Reversing mechanism for electric drills |
| | 1,683,448 | Sep. 04, 1928 | C.M. Conradson | Selective Geared Head Lathe |
| | 2,186,168 | Jan. 09, 1940 | W.L. Groene, W.F. Groene | Feed Mechanism for Lathes |
| | 2,199,834 | May 07, 1940 | W.L. Groene, W.F. Groene | Feed Mechanism for Lathes |
| | 2,273,807 | Feb. 17, 1942 | R.m. Woytych | Speed Change Gearing |
| | 2,281,921 | May 05, 1942 | F.W. Curtis | Tumble Change Gear Mechanism |
| | 2,355,623 | Aug. 15, 1944 | E.P. Bullard | Transmission |
