Urs Hofer

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Zurich, CH

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for the extraction of oil or polychlorinated biphenyl fro...
- Patent number 5,082,535
- Issue date Jan 21, 1992
- Micafil, AG
- Gustav Oesch
- F26 - DRYING
Information Patent Grant
Process for the extraction of oil or polychlorinated biphenyl from...
- Patent number 4,879,004
- Issue date Nov 7, 1989
- Micafil AG
- Gustav Oesch
- F26 - DRYING