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Fritz Haupt
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Regensdorf, CH
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Patents Grants
last 30 patents
Information
Patent Grant
Gear pump
Patent number
5,253,988
Issue date
Oct 19, 1993
Maag Pump Systems AG
Alfred K. Hunziker
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Gear pump with rotatable sections
Patent number
4,462,770
Issue date
Jul 31, 1984
Maag Gear-Wheel & Machine Company Limited
Fritz Haupt
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Intermeshing gear pump with sealing means comprising two concentric...
Patent number
4,268,232
Issue date
May 19, 1981
Maag Gearwheel & Machine Company Ltd.
Fritz Haupt
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Gear pump with transmission gearwheel adjustment
Patent number
4,225,296
Issue date
Sep 30, 1980
Maag Gear Wheel & Machine Company
Fritz Haupt
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...