Richard D. Zarneke

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Moundsview, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Double diaphragm pump having two-stage air valve actuator
- Patent number 5,368,452
- Issue date Nov 29, 1994
- Graco Inc.
- Harold Johnson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...