John H. Harker

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Riverwoods, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Pump with resiliently mounted impeller
- Patent number 4,569,638
- Issue date Feb 11, 1986
- International Telephone & Telegraph Corporation
- John H. Harker
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...