| All Patents in class 451/460 |
Patents 1 -
10
of 16
      |
| Picture | Number | Date | Patentee | Title |
 | 195,220 | Sep. 18, 1877 | E. Knight | Improvement in devices for lifting work into and out of lathes |
 | 504,000 | Aug. 29, 1893 | M.M. Aust, C.P. Thiel | Machine for Grinding Thread Cutting Tools |
 | 508,196 | Nov. 07, 1893 | T.A. Willson, H. Bilgram | Machine for grinding the edges of spectacle or eyeglass lenses |
 | 646,397 | Mar. 27, 1900 | W.H. Thorne, J.S. Bancroft | Grinding-Machine |
| | 1,336,928 | Apr. 13, 1920 | F.L. Simmons | Method and Apparatus for Alining Work on V Blocks and the Like for Magnetic Chucks |
 | 1,408,339 | Feb. 28, 1922 | L.W. Bugbee | Protractor for Optical Work |
| | 1,612,774 | Dec. 28, 1926 | A. Turner | Machine Tool |
| | 1,696,027 | Dec. 18, 1928 | E.P. Bullard, Jr. | Automatic Multiple Spindle Lathe |
 | 1,880,347 | Oct. 04, 1932 | K.L. Herrmann | Method of Grinding Bearing Races |
| | 2,040,978 | May 19, 1936 | S.A. Cogsdill | Device for Loading Tools in Holders |
