Eiryo Okami

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Kurobe, JA

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Patents Grantslast 30 patents

Information Patent Grant
Method of producing precast concrete panels with built-in outer sas...
- Patent number 4,065,540
- Issue date Dec 27, 1977
- Yoshida Kogyo K.K.
- Eiryo Okami
- B28 - WORKING CEMENT, CLAY, OR STONE