Rolf Rand

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Melle, DE

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Patents Grantslast 30 patents

Information Patent Grant
Plate holding device fixed to a substructure
- Patent number 7,516,579
- Issue date Apr 14, 2009
- DORMA GmbH + Co. KG
- Ralf Kreyenborg
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Plate holding device fixed to a substructure
- Publication number 20060141278
- Publication date Jun 29, 2006
- Ralf Kreyenborg
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS