CALL BACK METHD OF AN ELECTRODE SWITCHBOARD - TOKYO SHIBAURA ELECTRIC CO

Title:

CALL BACK METHD OF AN ELECTRODE SWITCHBOARD

Document Type and Number:

Japanese Patent JPS51132910

Kind Code:

A

Abstract:

PURPOSE: To go to call back by dialing of the selected extention phone, after the office line dividing.

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Inventors:

FUKUDA TAKEO
HANAWA KAZUHIKO
URUI KIYOSHI

Application Number:

JP5673475A

Publication Date:

November 18, 1976

Filing Date:

May 15, 1975

Export Citation:

Assignee:

TOKYO SHIBAURA ELECTRIC CO

International Classes:

H04M3/58; H04M3/48; H04Q3/545; (IPC1-7): H04M3/58; H04Q3/54

Domestic Patent References:

JPS4743962A

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