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Hydraulic gear pump
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Patent number 4,850,814
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Issue date Jul 25, 1989
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Barmag AG
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Siegfried Hertell
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Internal gear pump
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Patent number 4,813,853
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Issue date Mar 21, 1989
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Barmag AG
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Dieter Otto
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Gear pump having multiple outputs
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Patent number 4,780,070
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Issue date Oct 25, 1988
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Barmag AG
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Siegfried Hertell
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Regulating pump
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Patent number 4,750,867
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Issue date Jun 14, 1988
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Siegfried Hertell
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Gear pump having multiple outputs
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Patent number 4,674,964
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Issue date Jun 23, 1987
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Barmag AG
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Siegfried Hertell
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Rotary vane pump
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Patent number 4,604,041
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Issue date Aug 5, 1986
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Barmag Barmer Maschinenfabrik Aktiengesellschaft
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Siegfried Hertell
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Seal for high pressure pump or the like
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Patent number 4,515,512
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Issue date May 7, 1985
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Barmag Barmer Maschinenfabrik AG
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Siegfried Hertell
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Motor fuel feed pump
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Patent number 4,462,302
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Issue date Jul 31, 1984
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Barmag Barmer Maschinenfabrik AG
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Siegfried Hertell
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Rotary vane pump
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Patent number 4,459,091
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Issue date Jul 10, 1984
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Barmag Barmer Maschinenfabrik AG
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Siegfried Hertell
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B60 - VEHICLES IN GENERAL
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Rotary vane pump assembly
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Patent number 4,255,098
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Issue date Mar 10, 1981
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Barmag Barmer Machinenfabrik Aktiengesellschaft
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Siegfried Hertell
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B60 - VEHICLES IN GENERAL
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Rotary vane pump
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Patent number 4,231,728
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Issue date Nov 4, 1980
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Barmag Barmer Maschinenfabrik Aktiengesellschaft
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Siegfried Hertell
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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