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All Patents in class 100/258A
Patents 1 - 9 of 9
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,900,050Mar. 07, 1933W. ErnstHydraulic Press Platen Travel Equalizer hydraulic presses
2,185,096Dec. 26, 1939R.B. TreerPressstamping presses
2,978,976Apr. 11, 1961M.W. Hazelton, R.E. Griesheimer, C.J. OstendorfLevel control for press brakes and the likesheet metal brakes
3,120,799Feb. 11, 1964H.B. Van Auken, J.J. StrnadPlaten-leveling control system for hydraulically-actuated brake presseshydraulic metalworking presses
3,763,690Oct. 09, 1973R.J. Heitner, J.A. KirincicPress brake ram levelingsheet metal brakes
4,690,049Sep. 01, 1987L. MalashenkoHydraulic press with side slab guided upper platenhydraulic metalworking presses
4,694,744Sep. 22, 1987J. Hepburn, L. MalashenkoHydraulic press without conventional side slabs and cross-headhydraulic metalworking presses
4,828,474May 09, 1989R. BallantyneHydraulic cylinder device for platen spacing indication and controlhydraulic metalworking presses
5,156,782Oct. 20, 1992R. BallantyneMaintaining press platens in parallel relationshiphydraulic metalworking presses
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