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| All Patents in class 192/129B | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,808,275 | Jun. 02, 1931 | F.N. Whitesell | Safety Apparatus | ||
| 2,308,728 | Jan. 19, 1943 | W. Trible, E.D. Vancil | Safety Control for Machine Tools | ||
| 2,734,609 | Feb. 14, 1956 | R.C. Fritzsch | Pneumatic clutch control | ||
| 2,886,155 | May 12, 1959 | R.W. Hadley | Press control circuit | ||