Wolfgang Graser

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D-8729 Zeil, DE

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Patents Grantslast 30 patents

Information Patent Grant
Sub-roof for a roof covered with roofing boards
- Patent number 4,854,102
- Issue date Aug 8, 1989
- Eugen Feil
- E04 - BUILDING
Information Patent Grant
Roofing plate for planting greenery on roofs
- Patent number 4,800,675
- Issue date Jan 31, 1989
- Eugen Feil
- E04 - BUILDING