CA899499A - Circuits for private automatic telephone exchange systems - Google Patents

Circuits for private automatic telephone exchange systems

Info

Publication number
CA899499A
CA899499A CA899499A CA899499DA CA899499A CA 899499 A CA899499 A CA 899499A CA 899499 A CA899499 A CA 899499A CA 899499D A CA899499D A CA 899499DA CA 899499 A CA899499 A CA 899499A
Authority
CA
Canada
Prior art keywords
circuits
telephone exchange
automatic telephone
exchange systems
private automatic
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
CA899499A
Inventor
L. Jacobs 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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
Publication date
Application granted granted Critical
Publication of CA899499A publication Critical patent/CA899499A/en
Expired legal-status Critical Current

Links

CA899499A Circuits for private automatic telephone exchange systems Expired CA899499A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA899499T

Publications (1)

Publication Number Publication Date
CA899499A true CA899499A (en) 1972-05-02

Family

ID=36405355

Family Applications (1)

Application Number Title Priority Date Filing Date
CA899499A Expired CA899499A (en) Circuits for private automatic telephone exchange systems

Country Status (1)

Country Link
CA (1) CA899499A (en)

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