Guenter Gehrke

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Cologne, DT

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Patents Grantslast 30 patents

Information Patent Grant
Anthraquinone dyestuffs
- Patent number 3,963,763
- Issue date Jun 15, 1976
- Bayer Aktiengesellschaft
- Volker Hederich
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...