Walter R. Krevald

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Des Plaines, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Rotary valve and piston pump assembly and tank dispenser therefor
- Patent number 6,579,079
- Issue date Jun 17, 2003
- Diamond Machine Werks, Inc.
- Walter R. Krevald
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
Rotary valve and piston pump assembly and tank dispenser therefor
- Publication number 20030059323
- Publication date Mar 27, 2003
- Walter R. Krevald
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...