Song Der-Chin

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Tau-Yuan Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Black dye composition
- Patent number 6,126,700
- Issue date Oct 3, 2000
- Everlight USA, Inc.
- Lai Bao-Kun
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...