| All Patents in class 451/460 |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 195,220 | Sep. 18, 1877 | E. Knight | Improvement in devices for lifting work into and out of lathes | metal lathe accessories and attachments |
| 504,000 | Aug. 29, 1893 | M.M. Aust, C.P. Thiel | Machine for Grinding Thread Cutting Tools | tool grinders |
| 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 | tool grinders |
| 1,336,928 | Apr. 13, 1920 | F.L. Simmons | Method and Apparatus for Alining Work on V Blocks and the Like for Magnetic Chucks | magnetic chuck accessories |
| 1,408,339 | Feb. 28, 1922 | L.W. Bugbee | Protractor for Optical Work | protractors |
| 1,612,774 | Dec. 28, 1926 | A. Turner | Machine Tool | cylindrical grinders |
| 1,696,027 | Dec. 18, 1928 | E.P. Bullard, Jr. | Automatic Multiple Spindle Lathe | multiple spindle lathes |
| 1,880,347 | Oct. 04, 1932 | K.L. Herrmann | Method of Grinding Bearing Races | grinders |
| 2,040,978 | May 19, 1936 | S.A. Cogsdill | Device for Loading Tools in Holders | metalworking machine tool holders |
| 2,067,442 | Jan. 12, 1937 | G.F. Frisz | Clutch Aligning Tool | |
| 2,173,530 | Sep. 19, 1939 | J.Y. Blazek | Tool to position connecting rod for grinding | vehicle mechanic |
| 2,329,382 | Sep. 14, 1943 | J.Y. Blazek, V.R. Roy, G.E. Sears | Crankshaft locator | crankshaft maintenance |
| 2,540,774 | Feb. 06, 1951 | R.O. Beardsley | Holding Fixture | jigs and fixtures |
| 2,798,347 | Jul. 09, 1957 | S.G. Brady | Means Facilitating the Mounting of Work on an Arbor Preparatory to the Form Grinding of the Same | part fixtures |
