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Application filed by Geba Ges Fyr Elektronische BrafiledCriticalGeba Ges Fyr Elektronische Bra
Publication of DK690974ApublicationCriticalpatent/DK690974A/da
G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B17/00—Fire alarms; Alarms responsive to explosion
G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
