Prayon Developpment, Societe Anonyme

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Patents Grantslast 30 patents

Information Patent Grant
Continuous process for preparing phosphoric acid and calcium sulphate
- Patent number 4,777,027
- Issue date Oct 11, 1988
- Prayon Developpment, Societe Anonyme
- Armand L. Davister
- C01 - INORGANIC CHEMISTRY