CA430004A - Systeme telephonique a cadran - Google Patents

Systeme telephonique a cadran

Info

Publication number
CA430004A
CA430004A CA430004A CA430004DA CA430004A CA 430004 A CA430004 A CA 430004A CA 430004 A CA430004 A CA 430004A CA 430004D A CA430004D A CA 430004DA CA 430004 A CA430004 A CA 430004A
Authority
CA
Canada
Prior art keywords
telephone system
switching telephone
dial switching
dial
telephone
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
CA430004A
Other languages
English (en)
Inventor
Hatton William
Kozma Ladislas
Baines Haigh Leslie
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
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA430004A publication Critical patent/CA430004A/fr
Expired legal-status Critical Current

Links

CA430004A Systeme telephonique a cadran Expired CA430004A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA430004T

Publications (1)

Publication Number Publication Date
CA430004A true CA430004A (fr) 1945-09-11

Family

ID=35545015

Family Applications (1)

Application Number Title Priority Date Filing Date
CA430004A Expired CA430004A (fr) Systeme telephonique a cadran

Country Status (1)

Country Link
CA (1) CA430004A (fr)

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