Stamatios Stefou

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Patents Grantslast 30 patents

Information Patent Grant
Oil sludge conditioning equipment
- Patent number 4,812,234
- Issue date Mar 14, 1989
- Maschinenfabrik Andritz Actiengesellschaft
- Heinz Perchthaler
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE