Optical fire detector and method for detecting an obstruction in a scatter volume of an optical fire detector
Optical fire detector and method for detecting an obstruction in a scatter volume of an optical fire detector
- CN 103,177,523 A
- Filed: 12/20/2012
- Published: 06/26/2013
- Est. Priority Date: 12/20/2011
- Status: Active Application
- EN CH
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- Pin
