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Process for producing fast tints on artificial silk

Year of Publication 14.04.1932
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Improvements in or relating to ceramic colouring matters

Year of Publication 20.05.1938
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Manufacture of azo-dyestuffs containing chromium

Year of Publication 01.04.1936
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Manufacture of new dyestuffs

Year of Publication 24.06.1926
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A manufacture of chromiferous azo-dyestuffs

Year of Publication 02.07.1947
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Process for the manufacture of derivatives of sterols

Year of Publication 28.02.1939
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Manufacture of chromiferous dyestuffs

Year of Publication 02.08.1934
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Manufacture of coloured masses

Year of Publication 19.10.1936
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Process for dyeing leather

Year of Publication 14.03.1935
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Manufacture of organic nitrogen compounds

Year of Publication 05.07.1949
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Dyestuffs derived from 2-amino-3-naphthoic acid

Year of Publication 31.12.1941
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Process of treating a shaving preparation

Year of Publication 13.07.1936
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