Josef Lehmkuhl

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Hofheim, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing calcium compounds containing water of crystall...
- Patent number 6,814,947
- Issue date Nov 9, 2004
- Rethmann Lippewerk GmbH
- Josef Lehmkuhl
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE