Cathy Feray

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Suresnes, FR

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Patents Grantslast 30 patents

Information Patent Grant
Method for regulating the residual free chlorine in water
- Patent number 5,011,613
- Issue date Apr 30, 1991
- Lyonnaise des Eaux
- Cathy Feray
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE