Terry W. Pepper

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Golden, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Recovery of silver, copper and zinc from partially roasted pyrite c...
- Patent number 4,177,067
- Issue date Dec 4, 1979
- Texasgulf Inc.
- Terry W. Pepper
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Recovery of silver, copper, zinc and lead from partially roasted py...
- Patent number 4,168,969
- Issue date Sep 25, 1979
- Texasgulf Inc.
- Terry W. Pepper
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...