| All Patents in class 29/DIG.077 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 142,511 | Sep. 02, 1873 | S.W. Putnam, Jr. | Improvement in machines for tapping nuts | nut or bolt making machines |
| 995,256 | Jun. 13, 1911 | E.J. Kearney, T. Trecker | Milling-machine | milling machines |
| 1,096,588 | May 12, 1914 | A.J. Baker, R.T. Hazelton | Chip-confining frame | milling machines |
| 1,170,010 | Feb. 01, 1916 | M.A. Smith | Automatic metal-shaping machine | metal shapers |
| 1,860,840 | May 31, 1932 | N.M. Marsilius, O.A. Olsen | Milling machine | milling machines |
| 1,907,938 | May 09, 1933 | T. Thorsen, A. Storm | Piston turning and grinding machine | automotive tools |
| 1,922,246 | Aug. 15, 1933 | A.M. Johnson | Machine tool | honing machines |
| 2,021,602 | Nov. 19, 1935 | P.S. Jackson | Grinding machine | |
| 2,025,070 | Dec. 24, 1935 | E.E. Nygren | Metal cutting machine | broaching machines |
| 2,326,638 | Aug. 10, 1943 | W.F. Groene, H.J. Siekmann | Machine tool coolant system | gunsmith |
| 2,413,016 | Dec. 24, 1946 | H.V. Boehnke, C.A. Wiken | Cutting machine | circular crosscut saws |
