4. D - Textiles, Paper
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  6. L

Optical brighteners

D - Textiles – Paper – 06 – L

Patent

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Details

8/52, 260/311.1

D06L 3/12 (2006.01)

Patent

CA 806669

Karl H. Lebkucher

D - Textiles – Paper – 06 – L
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Pintschovius Ulrich

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Schinzel Erich

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Farbwerke Hoechst Aktiengesellschaft Vormals Meister Lucius And

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