Otto L. Heissenberger

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Patents Grantslast 30 patents

Information Patent Grant
Process for regulating the breaking length ratio of a manufactured...
- Patent number 6,251,225
- Issue date Jun 26, 2001
- Voith Sulzer Papiertechnik Patent GmbH
- Wolfgang Ruf
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE