JPS5919510Y2 - 通話確認試験器 - Google Patents

通話確認試験器

Info

Publication number
JPS5919510Y2
JPS5919510Y2 JP3525079U JP3525079U JPS5919510Y2 JP S5919510 Y2 JPS5919510 Y2 JP S5919510Y2 JP 3525079 U JP3525079 U JP 3525079U JP 3525079 U JP3525079 U JP 3525079U JP S5919510 Y2 JPS5919510 Y2 JP S5919510Y2
Authority
JP
Japan
Prior art keywords
circuit
call
magnetic detection
detection element
call confirmation
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.)
Expired
Application number
JP3525079U
Other languages
English (en)
Japanese (ja)
Other versions
JPS55135565U (enExample
Inventor
喜久雄 前川
弘道 露木
茂 溝口
行雄 春日谷
謙二 足立
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP3525079U priority Critical patent/JPS5919510Y2/ja
Publication of JPS55135565U publication Critical patent/JPS55135565U/ja
Application granted granted Critical
Publication of JPS5919510Y2 publication Critical patent/JPS5919510Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Monitoring And Testing Of Exchanges (AREA)
JP3525079U 1979-03-19 1979-03-19 通話確認試験器 Expired JPS5919510Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3525079U JPS5919510Y2 (ja) 1979-03-19 1979-03-19 通話確認試験器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3525079U JPS5919510Y2 (ja) 1979-03-19 1979-03-19 通話確認試験器

Publications (2)

Publication Number Publication Date
JPS55135565U JPS55135565U (enExample) 1980-09-26
JPS5919510Y2 true JPS5919510Y2 (ja) 1984-06-05

Family

ID=28894160

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3525079U Expired JPS5919510Y2 (ja) 1979-03-19 1979-03-19 通話確認試験器

Country Status (1)

Country Link
JP (1) JPS5919510Y2 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0317500Y2 (enExample) * 1981-05-14 1991-04-12

Also Published As

Publication number Publication date
JPS55135565U (enExample) 1980-09-26

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