Takahisa Kouyama

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Kadoma, JP

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Patents Grantslast 30 patents

Information Patent Grant
Phenol-formaldehyde composition useful as a raw material for the pr...
- Patent number 4,130,550
- Issue date Dec 19, 1978
- Matsushita Electric Works, Ltd.
- Yoshihiro Kitsuda
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...