| All Patents in class 29/56 |
Patents 1 -
15
of 22
      |
| Number | Date | Patentee | Title | Type |
| 289,655 | Dec. 04, 1883 | G. Heyne | Screw Machine | screw machines |
| 329,447 | Nov. 03, 1885 | W. Frech | Tool Holding Attachment for Lathes | metal lathe accessories and attachments |
| 333,198 | Dec. 29, 1885 | J.B. Clyne | Metal Screw Machine | screw machines |
| 377,080 | Jan. 31, 1888 | E. Lindner | Turning Lathe | turret lathes |
| 452,495 | May 19, 1891 | E. Lindner | Turning Lathe | turret lathes |
| 587,480 | Aug. 03, 1897 | J. Hartness | Attachment for Turret Lathes | metal lathe accessories and attachments |
| 633,419 | Sep. 19, 1899 | J. Brockie | Automatic Lathe | automatic lathes |
| 640,281 | Jan. 02, 1900 | J.F. Dowding | Lathe | multiple spindle lathes |
| 672,398 | Apr. 16, 1901 | J. Hartness | Lathe | automatic lathes |
| 735,254 | Aug. 04, 1903 | J. Hartness | Metal Working Machine | metal lathe accessories and attachments |
| 739,866 | Sep. 29, 1903 | J. Hartness | Turret Lathe | turret lathes |
| 771,242 | Oct. 04, 1904 | J. Hartness | Turret Lathe | turret lathes |
| 1,130,276 | Mar. 02, 1915 | J. Hartness | Automatic chucking-lathe | metal lathes |
| 1,130,277 | Mar. 02, 1915 | J. Hartness | Multispindle lathe | multiple spindle lathes |
| 1,642,909 | Sep. 20, 1927 | H.W. Thompson | Metal Lathe | metal lathes |
