| All Patents in class 74/348 |
Patents 16 -
30
of 40
      |
| Number | Date | Patentee | Title | Type |
| 917,015 | Apr. 06, 1909 | W. Runge, H.M. Darling | Gearing for machine-tools | industrial machine gearing |
| 943,142 | Dec. 14, 1909 | A.L. De Leeuw | Variable Speed Driving Mechanism | metalworking variable speed mechanisms |
| 948,025 | Feb. 01, 1910 | H.W. Schatz | Variable Speed Mechanism | metalworking variable speed mechanisms |
| 975,748 | Nov. 15, 1910 | A.V. Carroll | Gearing for Lathes | industrial machine gearing |
| 980,614 | Jan. 03, 1911 | A.L. De Leeuw | Milling Machine | milling machines |
| 1,008,181 | Nov. 07, 1911 | R. Milne | Change-speed mechanism | drill presses |
| 1,032,698 | Jul. 16, 1912 | J. Parker | Means of manually rotating a machine spindle | metalworking machine mechanisms |
| 1,196,882 | Sep. 05, 1916 | J. Parker | Variable-speed gearing | metalworking machine mechanisms |
| 1,196,883 | Sep. 05, 1916 | J. Parker | Variable-speed mechanism | metalworking machine mechanisms |
| 1,285,399 | Nov. 19, 1918 | W.H. Runge | Speed-changing mechanism | metal lathes |
| 1,362,790 | Dec. 21, 1920 | F. Hardinge | Gear mechanism for lathes | metal lathes |
| 1,434,202 | Oct. 31, 1922 | W.B. Engelhardt | Electric drill | handheld power drills |
| 1,709,233 | Apr. 16, 1929 | O.C. Schroeder | Mechanical movement | metal lathe accessories and attachments |
| 1,982,612 | Nov. 27, 1934 | W.G. Hoelscher | Feed box transmission | metal lathes |
| 2,186,168 | Jan. 09, 1940 | W.L. Groene, W.F. Groene | Feed Mechanism for Lathes | metalworking machine mechanisms |
