CA802337A - Telephone systems - Google Patents

Telephone systems

Info

Publication number
CA802337A
CA802337A CA802337A CA802337DA CA802337A CA 802337 A CA802337 A CA 802337A CA 802337 A CA802337 A CA 802337A CA 802337D A CA802337D A CA 802337DA CA 802337 A CA802337 A CA 802337A
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
CA802337A
Inventor
A. W. Butcher John
G. Pullum Geoffrey
J. Willson Michael
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.)
International Telephone and Telegraph Corp
Original Assignee
International Telephone and Telegraph Corp
Publication date
Application granted granted Critical
Publication of CA802337A publication Critical patent/CA802337A/en
Expired legal-status Critical Current

Links

CA802337A Telephone systems Expired CA802337A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA802337T

Publications (1)

Publication Number Publication Date
CA802337A true CA802337A (en) 1968-12-24

Family

ID=36270372

Family Applications (1)

Application Number Title Priority Date Filing Date
CA802337A Expired CA802337A (en) Telephone systems

Country Status (1)

Country Link
CA (1) CA802337A (en)

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