| All Patents in class 29/38C |
Patents 16 -
30
of 32
      |
| Number | Date | Patentee | Title | Type |
| 1,909,767 | May 16, 1933 | W.M. Fairbairn, A.M. Johnson | Machine tool | tapping machines |
| 1,918,150 | Jul. 11, 1933 | G. Swahnberg, E.J. Kingsbury | Multiple head automatic drilling machine | multiple spindle drill presses |
| 1,924,594 | Aug. 29, 1933 | C.W. Goodrich, L.H. Blood | Combined Automatic Machine Tool | milling machines |
| 1,925,384 | Sep. 05, 1933 | J.H. Hoern | Ring Resawing Machine | metal cutting circular saws |
| 1,970,016 | Aug. 14, 1934 | H.E. Morton | Tool Holder | metal shaper tool holders |
| 1,975,005 | Sep. 25, 1934 | E.J. Kingsbury, G. Swahnberg | Indexing and control mechanism for a metal working machine | metalworking machine mechanisms |
| 1,975,006 | Sep. 25, 1934 | E.J. Kingsbury, J.E. Anderson | Indexing and control mechanism for independent metal working units | metalworking machine mechanisms |
| 1,975,007 | Sep. 25, 1934 | E.J. Kingsbury | Turret-based multi-operation machine | metalworking machine mechanisms |
| 1,976,104 | Oct. 09, 1934 | W.D. Archea | Milling Machinery | milling machines |
| 1,976,105 | Oct. 09, 1934 | W.D. Archea | Milling Machine | milling machines |
| 2,025,268 | Dec. 24, 1935 | E.P. Bullard | Multiple Spindle Stationary Work Turning Apparatus | |
| 2,114,284 | Apr. 19, 1938 | E.J. Svenson, P.R. Guirl, J.S. Barnes (deceased, estate of), H. Barnes (executrix) | Machine Tool and Control Therefor | machine tool controls |
| 2,270,590 | Jan. 20, 1942 | A.M. Johnson | Honing machine | honing machines |
| 2,363,033 | Nov. 21, 1944 | C.H. Adams | Double End Tooling Mechanism and Attachment | metalworking machine tool holders |
| 2,747,271 | May 29, 1956 | W.D. Averill, E.C. Raehrs | Process of Machining | machining |
