| All Patents in class 74/27 |
Patents 16 -
30
of 30
      |
| Number | Date | Patentee | Title | Type |
| 1,679,541 | Aug. 07, 1928 | F.W. Parker | Shaper | metal shapers |
| 1,824,700 | Sep. 22, 1931 | L.R. Williamson | Hydraulically operated reversing mechanism | tapping machines |
| 1,912,033 | May 30, 1933 | C.B. De Vlieg | Machine tool | |
| 1,924,608 | Aug. 29, 1933 | H.R. Isler | Cutter Grinder | tool grinders |
| 1,938,781 | Dec. 12, 1933 | B. Sassen, L.F. Nenninger | Milling Machine | milling machines |
| 1,991,771 | Feb. 19, 1935 | A.G. Plimmer | Grinding Machine | grinding machines |
| 2,000,553 | May 07, 1935 | C.R. Alden | Machine tool | horizontal boring mills |
| 2,010,366 | Aug. 06, 1935 | B.A. Kearns | Grinding Machine | grinding machines |
| 2,044,076 | Jun. 16, 1936 | A.M. Johnson | Skip-stop control mechanism | honing machines |
| 2,054,141 | Sep. 15, 1936 | W.I. Senger | Transmission and Control Mechanism | metal lathes |
| 2,110,173 | Mar. 08, 1938 | J.B. Armitage, W.M. Pohl | Machine Tool Transmission and Control | milling machines |
| 2,309,668 | Feb. 02, 1943 | J.E. Poorman | Grinding Machine | surface grinders |
| 2,309,669 | Feb. 02, 1943 | J.E. Poorman | Grinding Machine | surface grinders |
| 2,484,874 | Oct. 18, 1949 | R.W. Brown | Adjustable Variable Slide Actuator | metalworking machine mechanisms |
| 2,503,674 | Apr. 11, 1950 | T.H. Ljunggren | Grinding machine drive | grinders |
