CPC Main Group
G08B 25/00 Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
12 direct subcodes
Child Classifications
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- G08B 25/01 characterised by the transmission medium
- G08B 25/12 Manually actuated calamity alarm transmitting arrangements
- G08B 25/14 Central alarm receiver or annunciator arrangements