Erkki J. Jarvinen

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Outokumpu, FI

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Patents Grantslast 30 patents

Information Patent Grant
Immersible aerator and/or mixer apparatus
- Patent number 4,540,290
- Issue date Sep 10, 1985
- Outokumpu Oy
- Erkki J. Jarvinen
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL