JPS63187460U - - Google Patents

Info

Publication number
JPS63187460U
JPS63187460U JP7681987U JP7681987U JPS63187460U JP S63187460 U JPS63187460 U JP S63187460U JP 7681987 U JP7681987 U JP 7681987U JP 7681987 U JP7681987 U JP 7681987U JP S63187460 U JPS63187460 U JP S63187460U
Authority
JP
Japan
Prior art keywords
telephone
terminal
detects
detection circuit
circuit
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.)
Granted
Application number
JP7681987U
Other languages
English (en)
Japanese (ja)
Other versions
JPH042519Y2 (US08063081-20111122-C00044.png
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 JP1987076819U priority Critical patent/JPH042519Y2/ja
Publication of JPS63187460U publication Critical patent/JPS63187460U/ja
Application granted granted Critical
Publication of JPH042519Y2 publication Critical patent/JPH042519Y2/ja
Expired legal-status Critical Current

Links

JP1987076819U 1987-05-23 1987-05-23 Expired JPH042519Y2 (US08063081-20111122-C00044.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987076819U JPH042519Y2 (US08063081-20111122-C00044.png) 1987-05-23 1987-05-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987076819U JPH042519Y2 (US08063081-20111122-C00044.png) 1987-05-23 1987-05-23

Publications (2)

Publication Number Publication Date
JPS63187460U true JPS63187460U (US08063081-20111122-C00044.png) 1988-11-30
JPH042519Y2 JPH042519Y2 (US08063081-20111122-C00044.png) 1992-01-28

Family

ID=30924252

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987076819U Expired JPH042519Y2 (US08063081-20111122-C00044.png) 1987-05-23 1987-05-23

Country Status (1)

Country Link
JP (1) JPH042519Y2 (US08063081-20111122-C00044.png)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58207755A (ja) * 1982-02-09 1983-12-03 Iwatsu Electric Co Ltd 極性反転検知回路

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58207755A (ja) * 1982-02-09 1983-12-03 Iwatsu Electric Co Ltd 極性反転検知回路

Also Published As

Publication number Publication date
JPH042519Y2 (US08063081-20111122-C00044.png) 1992-01-28

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