CA807761A - Private branch exchange system - Google Patents

Private branch exchange system

Info

Publication number
CA807761A
CA807761A CA807761A CA807761DA CA807761A CA 807761 A CA807761 A CA 807761A CA 807761 A CA807761 A CA 807761A CA 807761D A CA807761D A CA 807761DA CA 807761 A CA807761 A CA 807761A
Authority
CA
Canada
Prior art keywords
exchange system
private branch
branch exchange
private
exchange
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
CA807761A
Inventor
H. Albrecht Erwin
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
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA807761A publication Critical patent/CA807761A/en
Expired legal-status Critical Current

Links

CA807761A Private branch exchange system Expired CA807761A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA807761T

Publications (1)

Publication Number Publication Date
CA807761A true CA807761A (en) 1969-03-04

Family

ID=36278266

Family Applications (1)

Application Number Title Priority Date Filing Date
CA807761A Expired CA807761A (en) Private branch exchange system

Country Status (1)

Country Link
CA (1) CA807761A (en)

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