Sakae Kawahara

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Funchu-City, Hiroshima-Pref, 726, JP

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Patents Grantslast 30 patents

Information Patent Grant
Pavement water conservation method
- Patent number 4,382,713
- Issue date May 10, 1983
- Sakae Kawahara
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES