| All Patents in class 29/DIG.077 |
Patents 1 -
10
of 11
      |
| Picture | Number | Date | Patentee | Title |
 | 142,511 | Sep. 02, 1873 | S.W. Putnam, Jr. | Improvement in machines for tapping nuts |
 | 995,256 | Jun. 13, 1911 | E.J. Kearney, T. Trecker | Milling-machine |
 | 1,096,588 | May 12, 1914 | A.J. Baker, R.T. Hazelton | Chip-confining frame |
 | 1,170,010 | Feb. 01, 1916 | M.A. Smith | Automatic metal-shaping machine |
| | 1,860,840 | May 31, 1932 | N.M. Marsilius, O.A. Olsen | Milling machine |
 | 1,907,938 | May 09, 1933 | T. Thorsen, A. Storm | Piston turning and grinding machine |
| | 1,922,246 | Aug. 15, 1933 | A.M. Johnson | Machine tool |
| | 2,021,602 | Nov. 19, 1935 | P.S. Jackson | Grinding machine |
 | 2,025,070 | Dec. 24, 1935 | E.E. Nygren | Metal cutting machine |
 | 2,326,638 | Aug. 10, 1943 | W.F. Groene, H.J. Siekmann | Machine tool coolant system |
