Ishikawasangyo Yugenkaisha

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Kuwana-Gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Floating island with water-purifying effect, plant-cultivation bag...
- Patent number 5,799,440
- Issue date Sep 1, 1998
- Inoac Corporation
- Masatoshi Ishikawa
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE