Yoichi Hasegawa

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Joyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Auxiliary for dewatering of sludge
- Patent number 4,710,298
- Issue date Dec 1, 1987
- Sanyo Chemical Industries, Ltd.
- Kimihiko Noda
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE