JPS5547783B2 - - Google Patents

Info

Publication number
JPS5547783B2
JPS5547783B2 JP9030875A JP9030875A JPS5547783B2 JP S5547783 B2 JPS5547783 B2 JP S5547783B2 JP 9030875 A JP9030875 A JP 9030875A JP 9030875 A JP9030875 A JP 9030875A JP S5547783 B2 JPS5547783 B2 JP S5547783B2
Authority
JP
Japan
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
JP9030875A
Other languages
Japanese (ja)
Other versions
JPS5214304A (en
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 filed Critical
Priority to JP9030875A priority Critical patent/JPS5214304A/ja
Priority to US05/707,324 priority patent/US4079212A/en
Publication of JPS5214304A publication Critical patent/JPS5214304A/ja
Publication of JPS5547783B2 publication Critical patent/JPS5547783B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP9030875A 1975-07-23 1975-07-25 Inter call telephone system in button telephone system Granted JPS5214304A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP9030875A JPS5214304A (en) 1975-07-25 1975-07-25 Inter call telephone system in button telephone system
US05/707,324 US4079212A (en) 1975-07-23 1976-07-21 Extension telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9030875A JPS5214304A (en) 1975-07-25 1975-07-25 Inter call telephone system in button telephone system

Publications (2)

Publication Number Publication Date
JPS5214304A JPS5214304A (en) 1977-02-03
JPS5547783B2 true JPS5547783B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1980-12-02

Family

ID=13994901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9030875A Granted JPS5214304A (en) 1975-07-23 1975-07-25 Inter call telephone system in button telephone system

Country Status (1)

Country Link
JP (1) JPS5214304A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
JPS5214304A (en) 1977-02-03

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