Masafumi Nasu

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Kagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Continuous squeeze-dewatering device
- Patent number 6,461,507
- Issue date Oct 8, 2002
- ISHIGAKI Company Limited
- Eiichi Ishigaki
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE