| All Patents in class 221/293 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 447,144 | Feb. 24, 1891 | J.B. Clyne | Automatic Feed Mechanism for Chucks | workpiece changers and storage mechanisms |
| 622,749 | Apr. 11, 1899 | S.L. Worsley | Feeding Attachment for Turret Lathes | turret lathes |
| 1,651,976 | Dec. 06, 1927 | E.B. Stimpson | Rivet-setting machine | riveting machines |
| 1,877,693 | Sep. 13, 1932 | C.A. Rich | Automatic Screw Machine | screw machines |
| 2,911,763 | Nov. 10, 1959 | H.P. Kwapien, A.W. Todd | Work feeding mechanism for a centerless grinder | centerless grinders |
