Jean-Paul Coquery

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Saint-Didier Au Mont d'Or, FR

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for the thermal conversion of gypsum
- Patent number 4,247,518
- Issue date Jan 27, 1981
- Rhone-Poulenc Industries
- Alain Charlet
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES