Erwin Tresch

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Mannedorf, CH

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Patents Grantslast 30 patents

Information Patent Grant
Smoke detector
- Patent number 4,321,595
- Issue date Mar 23, 1982
- Cerberus AG
- Erwin Tresch
- G08 - SIGNALLING
Information Patent Grant
Smoke detector
- Patent number 4,269,510
- Issue date May 26, 1981
- Cerberus AG
- Zoltan Horvath
- G08 - SIGNALLING
Information Patent Grant
Smoke detector with bimetallic element for temperature compensation
- Patent number 4,241,282
- Issue date Dec 23, 1980
- Cerberus AG
- Erwin Tresch
- G08 - SIGNALLING
Information Patent Grant
Smoke detector with a conical ring-shaped radiation region
- Patent number 4,181,439
- Issue date Jan 1, 1980
- Cerberus AG
- Erwin Tresch
- G08 - SIGNALLING
Information Patent Grant
Smoke detector
- Patent number 4,175,865
- Issue date Nov 27, 1979
- Cerberus AG
- Zoltan Horvath
- G08 - SIGNALLING