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All Patents of Type: hydraulic apparatus
Patents 1 - 15 of 20
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NumberDatePatenteeTitleType
8,203Jul. 08, 1851R. DudgeonPortable hydraulic presshydraulic jacks
22,713Jan. 25, 1859R. DudgeonHydraulic presshydraulic jacks
219,555Sep. 09, 1879O.C. WoolsonImprovement in hydraulic-power machineshydraulic apparatus
366,367Jul. 12, 1887J. BaileyHydraulic presshydraulic jacks
395,675Jan. 01, 1889J. WeeksHydraulic punch, &c.hydraulic apparatus
2,216,800Oct. 08, 1940W.G. BaldenhoferHydraulic Control Devicehydraulic apparatus
2,349,602May 23, 1944W.G. BaldenhoferHydraulic System for Plural Machine Toolshydraulic apparatus
2,396,147Mar. 05, 1946W.G. BaldenhoferCooling System for Hydraulically-Operated Machine Toolshydraulic apparatus
2,567,641Sep. 11, 1951M.W. HazeltonHydraulic work hold-down or clampmetal shapers
2,600,746Jun. 17, 1952W. ErnstFluid Pressure Control Valvehydraulic apparatus
2,612,114Sep. 30, 1952W. ErnstVane Pump or Motorhydraulic apparatus
2,612,115Sep. 30, 1952W. ErnstVane Pump and Vane Thereforhydraulic apparatus
2,625,797Jan. 20, 1953J.H. Shaver, H.H. PoortHydraulic eductor valvehydraulic apparatus
2,682,748Jul. 06, 1954W. ErnstRestrictor Valve for a Servomotor Circuithydraulic apparatus
2,921,439Jan. 19, 1960F.G. KrafftPump Controlhydraulic apparatus
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