Ralf Zingler

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Molln, DE

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Patents Grantslast 30 patents

Information Patent Grant
Device for generating a negative pressure in the sealed room of a t...
- Patent number 7,749,053
- Issue date Jul 6, 2010
- Fette GmbH
- Holger Behns
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
DEVICE FOR GENERATING A NEGATIVE PRESSURE IN THE SEALED ROOM OF A T...
- Publication number 20070149108
- Publication date Jun 28, 2007
- Fette GmbH
- Holger Behns
- B08 - CLEANING