CA1172727A - Systeme audiovisuel de surveillance - Google Patents

Systeme audiovisuel de surveillance

Info

Publication number
CA1172727A
CA1172727A CA000364595A CA364595A CA1172727A CA 1172727 A CA1172727 A CA 1172727A CA 000364595 A CA000364595 A CA 000364595A CA 364595 A CA364595 A CA 364595A CA 1172727 A CA1172727 A CA 1172727A
Authority
CA
Canada
Prior art keywords
circuit
lamp
power source
message
primary power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000364595A
Other languages
English (en)
Inventor
Tim G. English
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA000364595A priority Critical patent/CA1172727A/fr
Application granted granted Critical
Publication of CA1172727A publication Critical patent/CA1172727A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Emergency Alarm Devices (AREA)
CA000364595A 1980-11-13 1980-11-13 Systeme audiovisuel de surveillance Expired CA1172727A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000364595A CA1172727A (fr) 1980-11-13 1980-11-13 Systeme audiovisuel de surveillance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000364595A CA1172727A (fr) 1980-11-13 1980-11-13 Systeme audiovisuel de surveillance

Publications (1)

Publication Number Publication Date
CA1172727A true CA1172727A (fr) 1984-08-14

Family

ID=4118438

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000364595A Expired CA1172727A (fr) 1980-11-13 1980-11-13 Systeme audiovisuel de surveillance

Country Status (1)

Country Link
CA (1) CA1172727A (fr)

Similar Documents

Publication Publication Date Title
US4275274A (en) Audio visual monitoring system for announcing a message upon detection of a monitored condition
US11393305B2 (en) Evacuation system
US4288789A (en) Alarm system with verbal message
US6518878B1 (en) Warning system
US11462090B2 (en) Facility monitoring apparatus and method
US4375637A (en) Integrated alarm, security, building management, and communications system
US6060979A (en) Call box apparatus
US20010043144A1 (en) Communicative environmental alarm system with voice indication
US20030179090A1 (en) Environmental condition detector with audible alarm and voice identifier
US4682348A (en) Life safety audio system having a voice synthesizer and a constant volume telephone network
CA1172727A (fr) Systeme audiovisuel de surveillance
GB2087615A (en) Audio-visual communicating system
US3601540A (en) Security system
US2701874A (en) Burglar alarm system
JP2008043022A (ja) 外部報知装置及びデマンド管理システム
US3647974A (en) Sound-type detection system
US20070096931A1 (en) Alarm device
JPH0474514B2 (fr)
JPH0330956Y2 (fr)
US3388390A (en) Alarm system having recorded messages on magnetic drum
US4295130A (en) Audio-visual disaster alert system
JPH0314796Y2 (fr)
JPH0142227Y2 (fr)
JPH09185776A (ja) 消火器警報システム
JPS6118521Y2 (fr)

Legal Events

Date Code Title Description
MKEX Expiry