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Patents for Walter Ernst
Patents 16 - 30 of 47
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NumberDatePatenteeTitleType
1,870,501Aug. 09, 1932W. ErnstPlural Pressure Pump Control for Hydraulic Presses hydraulic pump controls
1,892,568Dec. 27, 1932W. ErnstSurge Valve for Hydraulic Presses or the Like hydraulic presses
1,895,710Jan. 31, 1933H.F. MacMillin, W. ErnstHydraulic Press hydraulic presses
1,899,678Feb. 28, 1933R. Thoreson, H.F. MacMillin, W. ErnstHydraulic Press hydraulic presses
1,900,050Mar. 07, 1933W. ErnstHydraulic Press Platen Travel Equalizer hydraulic presses
1,901,291Mar. 14, 1933W. ErnstHydraulic Press hydraulic presses
1,920,123Jul. 25, 1933W. ErnstRadial Pump hydraulic pumps
1,927,583Sep. 19, 1933W. ErnstHydraulic Motor Control Means hydraulic motor controls
1,937,192Nov. 28, 1933W. Ernst, H.F. MacMillinControl Mechanism for Hydraulic Motors hydraulic motor controls
1,940,668Dec. 26, 1933W. ErnstHydraulic Press Surge Control hydraulic presses
1,952,663Mar. 27, 1934W. ErnstControl Mechanism for Pumps and Associated Press Circuits hydraulic pump controls
1,956,758May 01, 1934W. ErnstHydraulic Press Operating Circuits hydraulic presses
1,971,850Aug. 28, 1934W. ErnstPress hydraulic presses
1,978,016Oct. 23, 1934W. ErnstControl Apparatus for Pumps hydraulic pump controls
2,009,487Jul. 30, 1935R. Thoreson, W. ErnstHydraulic Press hydraulic presses
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