Karl Zeller

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Ettingen, CH

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Patents Grantslast 30 patents

Information Patent Grant
Method of dyeing wool with acid dyestuffs
- Patent number 4,622,045
- Issue date Nov 11, 1986
- Sandoz Ltd.
- Josef Frauenknecht
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Process for dyeing mixed elastomeric and non-elastomeric fibers
- Patent number 4,247,290
- Issue date Jan 27, 1981
- Sandoz Ltd.
- Walter Knobel
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...