Hans Seiler

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Bubendorf, CH

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Patents Grantslast 30 patents

Information Patent Grant
Mass-dyeing of polyester with anthraquinone and benzanthrone dyes
- Patent number 4,165,306
- Issue date Aug 21, 1979
- Sandoz Ltd.
- Rene Moissonnier
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING