John C. Newman

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Longview, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Cleaning sluice boxes
- Patent number 4,962,858
- Issue date Oct 16, 1990
- Newman; John C.
- John C. Newman
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...