| All Patents in class 192/131R |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 1,047,349 | Dec. 17, 1912 | H.C. Walsh | Safety device for die-presses and analogous machines | punch presses |
| 1,531,490 | Mar. 31, 1925 | W.I. Seymour, G.P. Macready | Pneumatic drop hammer | drop hammers |
| 1,715,180 | May 28, 1929 | E.W. Zeh | Safety control for power presses | punch presses |
| 1,722,506 | Jul. 30, 1929 | H.G. Sahlin | Drop hammer | drop hammers |
| 1,845,428 | Feb. 16, 1932 | E.R. Llewellyn | Screw Thread Lock | metalworking machine mechanisms |
| 2,404,980 | Jul. 30, 1946 | E.A. Munschauer, Jr. | Machine control means | metal shearing machines |
| 2,639,796 | May 26, 1953 | R.W. Dean | Machine control means | metalworking machine mechanisms |
| 3,019,878 | Feb. 06, 1962 | E.A. Munschauer, Jr. | Power press control means | punch presses |
| 3,791,496 | Feb. 12, 1974 | H.R. Emrick | Dual control adapter for press | |
