| All Patents in class 82/19 |
Patents 76 -
90
of 107
      |
| Number | Date | Patentee | Title | Type |
| 1,664,741 | Apr. 03, 1928 | J.W. Durkee | Relieving Attachment | metal lathe accessories and attachments |
| 1,695,762 | Dec. 18, 1928 | F.O. Hoagland | Backing-Off Device for Cutters Having Angularly Disposed Teeth | backing off lathes |
| 1,757,155 | May 06, 1930 | J.J. Witt | Variety lathe | pattern lathes |
| 1,820,056 | Aug. 25, 1931 | I. Drowns | Boring Tool Holder | drilling and boring tool holders |
| 1,840,231 | Jan. 05, 1932 | F.S. Haas, R.E. Harrison | Grinding Machine | grinding machines |
| 1,879,201 | Sep. 27, 1932 | W.F. Groene | Cam Shaft Lathe | cam shaft lathes |
| 1,883,084 | Oct. 18, 1932 | E.J. Svenson | Machine tool | |
| 1,918,331 | Jul. 18, 1933 | A.W. Aufderhar, W.F. Groene | Combined Eccentric and Concentric Turning Apparatus | metal lathes |
| 1,929,269 | Oct. 03, 1933 | P.A. Abe, C.A. Bickel | Apparatus for Automatic Form Turning Lathe | engine lathes |
| 1,929,270 | Oct. 03, 1933 | C.A. Bickel | Machine Tool | engine lathes |
| 1,976,109 | Oct. 09, 1934 | W.D. Archea | Grinding Machine | grinding machines |
| 2,011,318 | Aug. 13, 1935 | W.G. Hoelscher | Relieving attachment | metal lathe accessories and attachments |
| 2,116,262 | May 03, 1938 | B. Granberg, J.B. Sinderson | Attachment for machine tools | |
| 2,124,347 | Jul. 19, 1938 | R.M. Bacon, W.F. Groene | Center Drive for Camshaft Lathes | metalworking machine mechanisms |
| 2,140,949 | Dec. 20, 1938 | C.A. Bickel | Apparatus for Turning Complex Workpieces | metal lathe accessories and attachments |
