Siegbert Schmidt

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Moers-Vinn, DT

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Patents Grantslast 30 patents

Information Patent Grant
Process for recovering electrolytic copper of high purity by means...
- Patent number 4,030,990
- Issue date Jun 21, 1977
- Duisburger Kupferhutte
- Norbert L. Piret
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR