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Kaiyo Koggyo Co. Ltd.
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Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Water purifier
Patent number
4,439,316
Issue date
Mar 27, 1984
Kaiyo Koggyo Co. Ltd.
Sadao Kozima
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE