Helmut Zanker

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Wunstorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Construction panel made of polyurethane integral hard foam
- Patent number 4,603,078
- Issue date Jul 29, 1986
- Fulgurit GmbH & Co. Kommanditgesellschaft
- Helmut Zanker
- E04 - BUILDING