| All Patents in class 74/745 |
Patents 1 -
15
of 18
      |
| Number | Date | Patentee | Title | Type |
| 430,082 | Jun. 10, 1890 | F.B. Miles | Drilling-machine | drill presses |
| 725,141 | Apr. 14, 1903 | C.F. Laur, A.E. Robinson | Speed Changing Mechanism | metal lathes |
| 1,250,363 | Dec. 18, 1917 | W.L. Schellenbach | Initial driving mechanism | vertical boring mills |
| 1,632,671 | Jun. 14, 1927 | R.A. Norling | Reversing mechanism for electric drills | handheld power drills |
| 1,683,448 | Sep. 04, 1928 | C.M. Conradson | Selective Geared Head Lathe | metalworking machine mechanisms |
| 2,186,168 | Jan. 09, 1940 | W.L. Groene, W.F. Groene | Feed Mechanism for Lathes | metalworking machine mechanisms |
| 2,199,834 | May 07, 1940 | W.L. Groene, W.F. Groene | Feed Mechanism for Lathes | metalworking machine mechanisms |
| 2,273,807 | Feb. 17, 1942 | R.m. Woytych | Speed Change Gearing | metalworking speed changing mechanisms |
| 2,281,921 | May 05, 1942 | F.W. Curtis | Tumble Change Gear Mechanism | milling machines |
| 2,355,623 | Aug. 15, 1944 | E.P. Bullard | Transmission | |
| 2,355,624 | Aug. 15, 1944 | E.P. Bullard, E.N. Cowell, F.H. Mussler | Transmission | |
| 2,357,952 | Sep. 12, 1944 | W.G. Hoelscher | Fluid Operated Gear Shifting Mechanism | metalworking speed changing mechanisms |
| 2,387,417 | Oct. 23, 1945 | V.v. Sundt | Lead Screw Gear Threading Box | metalworking power transmission |
| 2,395,433 | Feb. 26, 1946 | V.v. Sundt | Apron Feed Change Mechanism | metalworking power transmission |
| 2,573,152 | Oct. 30, 1951 | L.A. Leifer | Forward and Reverse Drive for Lathe Spindles | metalworking machine mechanisms |
