Edgar C. Schroeder

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San Antonio, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Positive displacement pump with rotating reciprocating piston and i...
- Patent number 5,096,394
- Issue date Mar 17, 1992
- C. Richard Gerlach
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Positive displacement pump with rotating reciprocating piston and i...
- Patent number 5,074,767
- Issue date Dec 24, 1991
- Hypro Corporation
- C. Richard Gerlach
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Positive displacement pump with rotating reciprocating piston
- Patent number 5,022,831
- Issue date Jun 11, 1991
- Hypro Corporation
- C. Richard Gerlach
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...