JPS63156137U - - Google Patents

Info

Publication number
JPS63156137U
JPS63156137U JP4977887U JP4977887U JPS63156137U JP S63156137 U JPS63156137 U JP S63156137U JP 4977887 U JP4977887 U JP 4977887U JP 4977887 U JP4977887 U JP 4977887U JP S63156137 U JPS63156137 U JP S63156137U
Authority
JP
Japan
Prior art keywords
circuit
telephone
hold
signal
full
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
JP4977887U
Other languages
English (en)
Japanese (ja)
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 JP4977887U priority Critical patent/JPS63156137U/ja
Publication of JPS63156137U publication Critical patent/JPS63156137U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
JP4977887U 1987-03-31 1987-03-31 Pending JPS63156137U (2)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4977887U JPS63156137U (2) 1987-03-31 1987-03-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4977887U JPS63156137U (2) 1987-03-31 1987-03-31

Publications (1)

Publication Number Publication Date
JPS63156137U true JPS63156137U (2) 1988-10-13

Family

ID=30872544

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4977887U Pending JPS63156137U (2) 1987-03-31 1987-03-31

Country Status (1)

Country Link
JP (1) JPS63156137U (2)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60250763A (ja) * 1984-05-25 1985-12-11 Matsushita Electric Works Ltd 電話機の保留アダプタ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60250763A (ja) * 1984-05-25 1985-12-11 Matsushita Electric Works Ltd 電話機の保留アダプタ

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