JPS56988B2 - - Google Patents

Info

Publication number
JPS56988B2
JPS56988B2 JP2197273A JP2197273A JPS56988B2 JP S56988 B2 JPS56988 B2 JP S56988B2 JP 2197273 A JP2197273 A JP 2197273A JP 2197273 A JP2197273 A JP 2197273A JP S56988 B2 JPS56988 B2 JP S56988B2
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
JP2197273A
Other languages
Japanese (ja)
Other versions
JPS49111533A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
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 JP2197273A priority Critical patent/JPS56988B2/ja
Publication of JPS49111533A publication Critical patent/JPS49111533A/ja
Publication of JPS56988B2 publication Critical patent/JPS56988B2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Bidirectional Digital Transmission (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
JP2197273A 1973-02-22 1973-02-22 Expired JPS56988B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2197273A JPS56988B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-02-22 1973-02-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2197273A JPS56988B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-02-22 1973-02-22

Publications (2)

Publication Number Publication Date
JPS49111533A JPS49111533A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-10-24
JPS56988B2 true JPS56988B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1981-01-10

Family

ID=12069939

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2197273A Expired JPS56988B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-02-22 1973-02-22

Country Status (1)

Country Link
JP (1) JPS56988B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55120244A (en) * 1979-03-08 1980-09-16 Nec Corp Phase supervisory system
JPS6398259A (ja) * 1986-10-15 1988-04-28 Hitachi Ltd 伝送ル−ト切換装置

Also Published As

Publication number Publication date
JPS49111533A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-10-24

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