Jan Ivan Bidwell

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St. Austell, EN

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Patents Grantslast 30 patents

Information Patent Grant
Treatment of clay minerals
- Patent number 4,045,235
- Issue date Aug 30, 1977
- English Clavs Lovering Pochin & Company, Limited
- Jan Ivan Bidwell
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES