Ralph Beyer

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Speyer, DE

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Patents Grantslast 30 patents

Information Patent Grant
Fire protection gate and correlated fire protection inset
- Patent number 7,740,931
- Issue date Jun 22, 2010
- Horst Keller
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
Fire Protection Gate and Correlated Fire Protection Inset
- Publication number 20080196638
- Publication date Aug 21, 2008
- Saint-Gobain Isover Les Miroirs
- Horst Keller
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS