Jyi-Shang Lii

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San-chung City, TW

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Patents Grantslast 30 patents

Information Patent Grant
High performance modified polyurethanes
- Patent number 4,956,439
- Issue date Sep 11, 1990
- Shen-Nan Tong
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...