CA385260A - Systeme de signaux telephoniques - Google Patents

Systeme de signaux telephoniques

Info

Publication number
CA385260A
CA385260A CA385260A CA385260DA CA385260A CA 385260 A CA385260 A CA 385260A CA 385260 A CA385260 A CA 385260A CA 385260D A CA385260D A CA 385260DA CA 385260 A CA385260 A CA 385260A
Authority
CA
Canada
Prior art keywords
signalling system
telephone signalling
telephone
signalling
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
CA385260A
Other languages
English (en)
Inventor
Kendall Low Frank
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 CA385260A publication Critical patent/CA385260A/fr
Expired legal-status Critical Current

Links

CA385260A Systeme de signaux telephoniques Expired CA385260A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA385260T

Publications (1)

Publication Number Publication Date
CA385260A true CA385260A (fr) 1939-11-21

Family

ID=35390483

Family Applications (1)

Application Number Title Priority Date Filing Date
CA385260A Expired CA385260A (fr) Systeme de signaux telephoniques

Country Status (1)

Country Link
CA (1) CA385260A (fr)

Similar Documents

Publication Publication Date Title
CA385260A (fr) Systeme de signaux telephoniques
CA379121A (fr) Systeme telephonique
CA379122A (fr) Systeme telephonique
CA379431A (fr) Systeme telephonique
CA379452A (fr) Systeme telephonique
CA379684A (fr) Systeme telephonique
CA379870A (fr) Systeme telephonique
CA380000A (fr) Systeme telephonique
CA380738A (fr) Systeme telephonique
CA380803A (fr) Systeme telephonique
CA381037A (fr) Systeme telephonique
CA381054A (fr) Systeme telephonique
CA381343A (fr) Systeme telephonique
CA382185A (fr) Systeme telephonique
CA383807A (fr) Systeme telephonique
CA383808A (fr) Systeme telephonique
CA383809A (fr) Systeme telephonique
CA383810A (fr) Systeme telephonique
CA383909A (fr) Systeme telephonique
CA384404A (fr) Systeme telephonique
CA385726A (fr) Systeme telephonique
CA379450A (fr) Systeme de signalisation
CA382192A (fr) Systeme de signalisation
CA384895A (fr) Systeme de signalisation
CA380768A (fr) Systeme avertisseur telephonique