CA530739A - Systemes telephoniques - Google Patents

Systemes telephoniques

Info

Publication number
CA530739A
CA530739A CA530739A CA530739DA CA530739A CA 530739 A CA530739 A CA 530739A CA 530739 A CA530739 A CA 530739A CA 530739D A CA530739D A CA 530739DA CA 530739 A CA530739 A CA 530739A
Authority
CA
Canada
Prior art keywords
telephone systems
telephone
systems
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
CA530739A
Other languages
English (en)
Inventor
G. Pearce James
Davison Alan
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.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
Publication date
Application granted granted Critical
Publication of CA530739A publication Critical patent/CA530739A/fr
Expired legal-status Critical Current

Links

CA530739A Systemes telephoniques Expired CA530739A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA530739T

Publications (1)

Publication Number Publication Date
CA530739A true CA530739A (fr) 1956-09-25

Family

ID=35684500

Family Applications (1)

Application Number Title Priority Date Filing Date
CA530739A Expired CA530739A (fr) Systemes telephoniques

Country Status (1)

Country Link
CA (1) CA530739A (fr)

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