Ralf Hirsch

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Hamburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the simultaneous treatment of the top and bottom sides...
- Patent number 5,869,131
- Issue date Feb 9, 1999
- Beiersdorf AG
- Frank Henke
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Single-layer laser label
- Patent number 5,626,966
- Issue date May 6, 1997
- Beiersdorf Aktiengesellschaft
- Klaus Kulper
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS