| All Patents in class 29/57 |
Patents 46 -
60
of 100
      |
| Number | Date | Patentee | Title | Type |
| 1,659,386 | Feb. 14, 1928 | J.J. Van Hamersveld | Tool Holder for Machine Tools | lathe tool holders and tool posts |
| 1,680,074 | Aug. 07, 1928 | J.J. Van Hamersveld | Taper Turning Attachment for Machine Tools | metal lathe accessories and attachments |
| 1,715,896 | Jun. 04, 1929 | E.P. Bullard, Jr. | Tool Slide | metalworking machine mechanisms |
| 1,751,078 | Mar. 18, 1930 | I. Drowns | Tool Holder | metalworking machine tool holders |
| 1,807,829 | Jun. 02, 1931 | E.P. Bullard, Jr. | Double Angular Tool Slide | |
| 1,812,366 | Jun. 30, 1931 | G.A. Perry | Taper Turner | metal lathe accessories and attachments |
| 1,835,591 | Dec. 08, 1931 | E.P. Bullard | Automatic Work Feeding and Chucking Means for Multiple Spindle Lathes | |
| 1,958,844 | May 15, 1934 | D.B. Bullard | Drilling Attachment | |
| 2,034,118 | Mar. 17, 1936 | M.J. Schlitters | Tool Holder | lathe tool holders and tool posts |
| 2,085,685 | Jun. 29, 1937 | F.H. Mussler | Cross-Feeding Tool Slide | |
| 2,122,356 | Jun. 28, 1938 | E.P. Bullard, G.R. Appelberg | Fluid Chuck Operating Mechanism | |
| 2,129,815 | Sep. 13, 1938 | E.P. Bullard | Machine Tool Coolant Distribution | |
| 2,154,496 | Apr. 18, 1939 | N.P. Darash | Tool Holder | metalworking machine tool holders |
| 2,257,503 | Sep. 30, 1941 | W.C. De Graff, M.E. Lange | Turning Tool | lathe tools |
| 2,264,780 | Dec. 02, 1941 | W.C. Hillard, H.H. Weld | Tooling for Rotating Work | automatic lathes |
