| All Patents in class 74/371 |
Patents 16 -
28
of 28
      |
| Number | Date | Patentee | Title | Type |
| 734,837 | Jul. 28, 1903 | J. Edgar | Change-feed mechanism | metalworking speed changing mechanisms |
| 734,838 | Jul. 28, 1903 | J. Edgar | Change-feed mechanism | metalworking speed changing mechanisms |
| 735,012 | Jul. 28, 1903 | W.F. Barnes | Speed Changing Mechanism | metalworking speed changing mechanisms |
| 737,619 | Sep. 01, 1903 | A.M. Harrison | Shaft Connecting Device for Change Gears | metalworking speed changing mechanisms |
| 741,789 | Oct. 20, 1903 | A.M. Harrison | Shaft Connecting Device for Change Gears | metalworking speed changing mechanisms |
| 802,489 | Oct. 24, 1905 | H. Baerbalck | Speed-changing device | drill presses |
| 968,488 | Aug. 23, 1910 | R. Milne | Gearing | drill presses |
| 1,351,969 | Sep. 07, 1920 | H.W. Schatz, A.E. Robinson, A.M. Sosa | Feeding Mechanism for Metal Working Machinery | metalworking machine mechanisms |
| 1,518,089 | Dec. 02, 1924 | J.E. Manquen | Change-speed mechanism for drilling machines or the like | drilling and boring |
| 2,269,064 | Jan. 06, 1942 | R.H. Rideout | Power feed mechanism for machine tools | drill presses |
| 2,273,807 | Feb. 17, 1942 | R.m. Woytych | Speed Change Gearing | metalworking speed changing mechanisms |
| 2,395,433 | Feb. 26, 1946 | V.v. Sundt | Apron Feed Change Mechanism | metalworking power transmission |
| 3,162,059 | Dec. 22, 1964 | S.E. Farekas | Power Feed Clutch Mechanism | engine lathes |
