| All Patents in class 173/152 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 255,236 | Mar. 21, 1882 | C.E. Ball | Electric drill | handheld power drills |
| 387,121 | Jul. 31, 1888 | F.W. Taylor | Method of Feeding the Support of a Metal Cutting Tool | metal lathe accessories and attachments |
| 925,491 | Jun. 22, 1909 | G.S. Lowe | Machine for severing stay-bolts | boiler repair tools |
| 2,247,479 | Jul. 01, 1941 | H.J. Caldwell | Honing machine | honing machines |
| 2,360,671 | Oct. 17, 1944 | A.C. Janke, C.O. Graves, F.S. Haas | Surface Grinder | grinding machines |
| 2,573,368 | Oct. 30, 1951 | E.Y. Seborg | Reciprocatory drive for machine tools | |
| 2,602,437 | Jul. 08, 1952 | W.L. Tancred | Hydraulic Profiler for Truing Devices and the Like | hydraulic apparatus |
| 2,706,892 | Apr. 26, 1955 | A.H. Dall, H. Fritschi | Tracer Control Circuit for Pattern Controlled Machines | profiling machines |
| 2,914,031 | Nov. 24, 1959 | G.H. Fuehrer | Telescopic feed leg assembly | |
| 2,918,720 | Dec. 29, 1959 | R.E. Delamater | Cutting tool support | drilling and boring |
| 2,952,065 | Sep. 13, 1960 | J.A. Hansen, K.A. Riedel | Twin Spindle Milling and Boring Machine | milling machines |
| 2,972,868 | Feb. 28, 1961 | B. Sassen | Machine tool slide control | |
| 3,002,404 | Oct. 03, 1961 | M.R. Estabrook | Control system for machine tools | |
