TREA

SIGNALLING OR CALLING SYSTEMS ORDER TELEGRAPHS ALARM SYSTEMS

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Industry

  • CPC
  • G08B

Parent Industries

GPHYSICS G08Signaling

Current Industry

G08BSIGNALLING OR CALLING SYSTEMS ORDER TELEGRAPHS ALARM SYSTEMS

Sub Industries

G08B1/00Systems for signalling characterised solely by the form of transmission of the signal G08B13/00Burglar, theft, or intruder alarms G08B15/00Identifying, scaring or incapacitating burglars, thieves, or intruders G08B17/00Fire alarms Alarms responsive to explosion G08B19/00Alarms responsive to two or more different undesired or abnormal conditions G08B21/00Alarms responsive to a single specified undesired or abnormal operating condition and not elsewhere provided for G08B23/00Alarms responsive to unspecified undesired or abnormal conditions G08B25/00Alarm systems in which the location of the alarm condition is signalled to a central station G08B26/00Alarm systems in which substations are interrogated in succession by a central station G08B27/00Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations G08B29/00Checking or monitoring of signalling or alarm systems Prevention or correction of operating errors G08B3/00Audible signalling systems Audible personal calling systems G08B31/00Predictive alarm systems characterised by extrapolation or other computation using updated historic data G08B5/00Visible signalling systems G08B6/00Tactile signalling systems G08B7/00Signalling systems according to more than one of groups G08B3/00 - G08B6/00 Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 G08B9/00Order telegraph apparatus, i.e. means for transmitting one of a finite number of different orders at the discretion of the user
Industries