Patrick Fisher

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Bloomington, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Relief valve assembly; piston member from same and filter head asse...
- Patent number 4,883,083
- Issue date Nov 28, 1989
- Donaldson Company, Inc.
- Patrick Fisher
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Duplex filter apparatus
- Patent number 4,615,800
- Issue date Oct 7, 1986
- Donaldson Company, Inc.
- Jack Stifelman
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL