CA766813A - Telephone private automatic branch exchange systems - Google Patents

Telephone private automatic branch exchange systems

Info

Publication number
CA766813A
CA766813A CA766813A CA766813DA CA766813A CA 766813 A CA766813 A CA 766813A CA 766813 A CA766813 A CA 766813A CA 766813D A CA766813D A CA 766813DA CA 766813 A CA766813 A CA 766813A
Authority
CA
Canada
Prior art keywords
branch exchange
exchange systems
automatic branch
private automatic
telephone private
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
CA766813A
Inventor
Aumuller Hans
Heitmann Herbert
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 CA766813A publication Critical patent/CA766813A/en
Expired legal-status Critical Current

Links

CA766813A Telephone private automatic branch exchange systems Expired CA766813A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA766813T

Publications (1)

Publication Number Publication Date
CA766813A true CA766813A (en) 1967-09-05

Family

ID=36210225

Family Applications (1)

Application Number Title Priority Date Filing Date
CA766813A Expired CA766813A (en) Telephone private automatic branch exchange systems

Country Status (1)

Country Link
CA (1) CA766813A (en)

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