Yoshiyuki Oothuka

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Composition suited for addition to ground excavation stabilizing li...
- Patent number 5,089,538
- Issue date Feb 18, 1992
- Shimizu Construction Co., Ltd.
- Yoshio Iizuka
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...