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All Patents in class 91
Patents 436 - 450 of 796
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NumberDatePatenteeTitleType
1,653,350Dec. 20, 1927W. ErnstHigh Speed Hydraulic Press hydraulic presses
1,668,927May 08, 1928J. StumpfNoncondensing steam enginesteam engines
1,671,074May 22, 1928W.G. HagmaierCarriage feedsawmill feed works
1,672,561Jun. 05, 1928W. ErnstHigh Speed Hydraulic Press hydraulic presses
1,684,729Sep. 18, 1928R.J. DenioAutomobile elevating apparatusvehicle mechanic
1,686,245Oct. 02, 1928H.G. MuellerReciprocating Steam Enginesteam engines
1,687,369Oct. 09, 1928F.J. LapointeHydraulic broaching machinebroaching machines
1,693,109Nov. 27, 1928W. ErnstSemiautomatic Valve hydraulic valves
1,696,868Dec. 25, 1928A.D. SkinnerValvesteam engine valves
1,722,506Jul. 30, 1929H.G. SahlinDrop hammerdrop hammers
1,722,832Jul. 30, 1929D.H. WestHydraulic transmissionhydraulic pumps
1,731,482Oct. 15, 1929L.F. Nenninger, H. ErnstSpindle Oscillatorgrinding machines
1,740,744Dec. 24, 1929F.A. ParsonsFluid Transmission and Control Means for Machine Toolsmilling machines
1,763,142Jun. 10, 1930W. ErnstHydraulic Press hydraulic presses
1,781,416Nov. 11, 1930G.D. SundstrandPump
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