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JPS51126002A - Private extension telephone equipment - Google Patents

Private extension telephone equipment

Info

Publication number
JPS51126002A
JPS51126002A JP4997975A JP4997975A JPS51126002A JP S51126002 A JPS51126002 A JP S51126002A JP 4997975 A JP4997975 A JP 4997975A JP 4997975 A JP4997975 A JP 4997975A JP S51126002 A JPS51126002 A JP S51126002A
Authority
JP
Japan
Prior art keywords
private extension
extension telephone
telephone equipment
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.)
Pending
Application number
JP4997975A
Other languages
Japanese (ja)
Inventor
Tadashi Akiyama
Yuzo Izumitani
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4997975A priority Critical patent/JPS51126002A/en
Publication of JPS51126002A publication Critical patent/JPS51126002A/en
Pending legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE: To cause a reduction in wiring made possible by the pairing of circuits of a usual telephone and with this system through the linking of a private extension and establishing a calling and sending circuit with dial oscillation to a button telephone and a usual telephone.
COPYRIGHT: (C)1976,JPO&Japio
JP4997975A 1975-04-24 1975-04-24 Private extension telephone equipment Pending JPS51126002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4997975A JPS51126002A (en) 1975-04-24 1975-04-24 Private extension telephone equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4997975A JPS51126002A (en) 1975-04-24 1975-04-24 Private extension telephone equipment

Publications (1)

Publication Number Publication Date
JPS51126002A true JPS51126002A (en) 1976-11-02

Family

ID=12846121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4997975A Pending JPS51126002A (en) 1975-04-24 1975-04-24 Private extension telephone equipment

Country Status (1)

Country Link
JP (1) JPS51126002A (en)

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