| All Patents in class 192/18A |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
 | 2,185,096 | Dec. 26, 1939 | R.B. Treer | Press |
 | 2,436,968 | Mar. 02, 1948 | W.F. Longfield | Combined clutch and brake |
 | 2,441,543 | May 11, 1948 | W.F. Longfield | Combined clutch and brake |
| | 2,734,609 | Feb. 14, 1956 | R.C. Fritzsch | Pneumatic clutch control |
| | 2,862,589 | Dec. 02, 1958 | F.B. Porteous, J.A. Foster | Friction drive mechanism |
| | 3,089,572 | May 14, 1963 | C. Herfurth | Machine Tool System Control Mechanism |
| | 3,155,007 | Nov. 03, 1964 | C. Herfurth, L.A. Dever | Automatic Machine Tool Control Mechanism |
