Katumi Iida

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Yokkaichi-shi, MIE, JP

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Patents Grantslast 30 patents

Information Patent Grant
Aeration type water treating device
- Patent number 4,859,321
- Issue date Aug 22, 1989
- Katumi Iida
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE