CA513379A - Automatic private branch exchange telephone system having transfer and night service - Google Patents

Automatic private branch exchange telephone system having transfer and night service

Info

Publication number
CA513379A
CA513379A CA513379A CA513379DA CA513379A CA 513379 A CA513379 A CA 513379A CA 513379 A CA513379 A CA 513379A CA 513379D A CA513379D A CA 513379DA CA 513379 A CA513379 A CA 513379A
Authority
CA
Canada
Prior art keywords
transfer
telephone system
private branch
branch exchange
exchange telephone
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
CA513379A
Other languages
French (fr)
Inventor
F. Stehlik Rudolph
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 Electric Laboratories Inc
Original Assignee
Automatic Electric Laboratories Inc
Publication date
Application granted granted Critical
Publication of CA513379A publication Critical patent/CA513379A/en
Expired legal-status Critical Current

Links

CA513379A Automatic private branch exchange telephone system having transfer and night service Expired CA513379A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA513379T

Publications (1)

Publication Number Publication Date
CA513379A true CA513379A (en) 1955-05-31

Family

ID=35664460

Family Applications (1)

Application Number Title Priority Date Filing Date
CA513379A Expired CA513379A (en) Automatic private branch exchange telephone system having transfer and night service

Country Status (1)

Country Link
CA (1) CA513379A (en)

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