Hans Eberhard Praetzel

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Cologne, DT

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Patents Grantslast 30 patents

Information Patent Grant
Self-extinguishing acrylonitrile-butadiene-styrene moulding composi...
- Patent number 3,962,164
- Issue date Jun 8, 1976
- Chemische Fabrik Kalk GmbH
- Hans Eberhard Praetzel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...