Ferdinand Klegraf

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Wiesbaden, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for slow softening water
- Patent number 4,209,395
- Issue date Jun 24, 1980
- Passavant-Werke Michelbacher Huette
- Norbert Berlenbach
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE