Zenichi Maruo

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Sakai, JA

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparing a foamed body having an annular ring pattern...
- Patent number 4,048,101
- Issue date Sep 13, 1977
- Daicel Ltd.
- Akio Nakamachi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...