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G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B17/00—Fire alarms; Alarms responsive to explosion
G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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Business, Economics & Management
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Emergency Management
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Physics & Mathematics
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General Physics & Mathematics
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Fire Alarms
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Alarm Systems
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Feedback Control In General
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FR432581D1910-05-231911-05-23Modes de montage électrique d'avertisseurs d'incendie, à deux ou plusieurs circuits à courant permanent
ExpiredFR432581A
(fr)