Duane A. Humphreys

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Self-regulating flow control device
- Patent number 4,465,103
- Issue date Aug 14, 1984
- The United States of America as represented by the United States Department o...
- Duane A. Humphreys
- G05 - CONTROLLING REGULATING