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CA572855A - Systemes de telephone - Google Patents

Systemes de telephone

Info

Publication number
CA572855A
CA572855A CA572855A CA572855DA CA572855A CA 572855 A CA572855 A CA 572855A CA 572855 A CA572855 A CA 572855A CA 572855D A CA572855D A CA 572855DA CA 572855 A CA572855 A CA 572855A
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
CA572855A
Other languages
English (en)
Inventor
L. Galvin John
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 CA572855A publication Critical patent/CA572855A/fr
Expired legal-status Critical Current

Links

CA572855A Systemes de telephone Expired CA572855A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA572855T

Publications (1)

Publication Number Publication Date
CA572855A true CA572855A (fr) 1959-03-24

Family

ID=35748696

Family Applications (1)

Application Number Title Priority Date Filing Date
CA572855A Expired CA572855A (fr) Systemes de telephone

Country Status (1)

Country Link
CA (1) CA572855A (fr)

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