Joel T. Fisher

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St. Paul, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Double diaphragm pump with air valve block moving in a rectangular...
- Patent number 5,860,794
- Issue date Jan 19, 1999
- Graco Inc.
- Kent P. Hand
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Double diaphragm pump
- Patent number D382277
- Issue date Aug 12, 1997
- Graco Inc.
- Ann C. Feitel
- D15 - Machines not elsewhere specified