CA504711A - Systeme de signalisation d'alarme - Google Patents

Systeme de signalisation d'alarme

Info

Publication number
CA504711A
CA504711A CA504711A CA504711DA CA504711A CA 504711 A CA504711 A CA 504711A CA 504711 A CA504711 A CA 504711A CA 504711D A CA504711D A CA 504711DA CA 504711 A CA504711 A CA 504711A
Authority
CA
Canada
Prior art keywords
signaling system
alarm signaling
alarm
signaling
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
CA504711A
Other languages
English (en)
Inventor
E. Clutts Charles
A. Pullis George
K. Schenck Alfred
A. Weber Laurance
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA504711A publication Critical patent/CA504711A/fr
Expired legal-status Critical Current

Links

CA504711A Systeme de signalisation d'alarme Expired CA504711A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA504711T

Publications (1)

Publication Number Publication Date
CA504711A true CA504711A (fr) 1954-07-27

Family

ID=35650633

Family Applications (1)

Application Number Title Priority Date Filing Date
CA504711A Expired CA504711A (fr) Systeme de signalisation d'alarme

Country Status (1)

Country Link
CA (1) CA504711A (fr)

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