| All Patents in class 269/30 | 
| Patents 1 - 
					6
					of 6 
       | 
| Number | Date | Patentee | Title | Type | 
| 1,412,806 | Apr. 11, 1922 | D.C. Klausmeyer | Strain Reverter | radial drill presses | 
| 1,847,657 | Mar. 01, 1932 | S.B. Langill, R. Langill | Sawmill dog | sawmill dogs | 
| 1,852,364 | Apr. 05, 1932 | G.M. Pelton | Sawmill dogging means | sawmill dogs | 
| 1,909,681 | May 16, 1933 | P.S. Jackson | Workholder for machine tools |  | 
| 2,328,061 | Aug. 31, 1943 | F.W. Curtis | Hydraulic Vise | milling machine accessories | 
| 3,825,245 | Jul. 23, 1974 | J.J. Schachte, J.G. Osburn | Workpiece Changer Mechanism for a Machine Tool | tool changers and storage mechanisms |