Huanzhong Wang

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Basel, CH

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing multicolor or tone-in-tone effects
- Patent number 5,360,455
- Issue date Nov 1, 1994
- Ciba-Geigy Corporation
- Klaus Hannemann
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL