Derve-Otoplastik GmbH

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Unna, DE

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Patents Grantslast 30 patents

Information Patent Grant
Low-viscosity radiation-curable composition for making an earpiece
- Patent number 7,514,477
- Issue date Apr 7, 2009
- Derve-Otoplastik GmbH
- Martin Klare
- H04 - ELECTRIC COMMUNICATION TECHNIQUE