Inventor
GUETTINGER HANNES
CH4 patents
Patents
4 patentsUS4642471AFeb 10, 1987
Scattered radiation smoke detector
CERBERUS AG38 citations90
US4551710ANov 5, 1985
Method and apparatus for reporting dangerous conditions
CERBERUS AG30 citations89
US4543815AOct 1, 1985
Device for the detection of foreign components in a gas and an application of the device
CERBERUS AG41 citations89
US4647786AMar 3, 1987
Photoelectric smoke detector and its application
CERBERUS AG20 citations79