Richard J. G. Hedley

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Bucks, GB

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Patents Grantslast 30 patents

Information Patent Grant
Production of stable anionic sols containing colloidal alumina hydrate
- Patent number 4,913,840
- Issue date Apr 3, 1990
- Alcan International Limited
- Kenneth A. Evans
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES