| All Patents in class 173/19 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 688,653 | Dec. 10, 1901 | F. Lambert | Tool-operating machine | drill presses |
| 1,735,400 | Nov. 12, 1929 | A.M. Johnson | Tool-spindle brake mechanism | drill presses |
| 1,740,744 | Dec. 24, 1929 | F.A. Parsons | Fluid Transmission and Control Means for Machine Tools | milling machines |
| 1,763,142 | Jun. 10, 1930 | W. Ernst | Hydraulic Press | hydraulic presses |
| 1,781,274 | Nov. 11, 1930 | W.C. De Roo | Feed-control mechanism | drill presses |
| 1,840,231 | Jan. 05, 1932 | F.S. Haas, R.E. Harrison | Grinding Machine | grinding machines |
| 2,000,421 | May 07, 1935 | L.L. Schauer, A.M. Sosa, J.H. McKewen | Duplex control for radial drills | radial drill presses |
| 2,148,348 | Feb. 21, 1939 | W.F. Groene, H.J. Siekmann | Turret lathe | turret lathes |
| 2,178,915 | Nov. 07, 1939 | G.K. McKee, C.E. Bernitt | Machine Tool | drill presses |
| 2,454,235 | Nov. 16, 1948 | E.J. Tomek | Drilling machine | multiple spindle drill presses |
| 3,129,613 | Apr. 21, 1964 | J.L. Burg | Reciprocating feed device for machine tools | drill presses |
| 3,238,621 | Mar. 08, 1966 | E.P. Bullard, III | Program Control | |
| 3,238,622 | Mar. 08, 1966 | E.P. Bullard, III | Program Control | |
