Charles H. Wells

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Portola Valley, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for cleaning undeslimed coal
- Patent number 4,405,453
- Issue date Sep 20, 1983
- Envirotech Corporation
- Charles H. Wells
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...