Ralph Haffner

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Edwardsburg, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Plumbing valve
- Patent number 4,078,764
- Issue date Mar 14, 1978
- Qest Products, Inc.
- Ralph Haffner
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...