JPS545307A - External channel circuit for key telephone - Google Patents

External channel circuit for key telephone

Info

Publication number
JPS545307A
JPS545307A JP7026477A JP7026477A JPS545307A JP S545307 A JPS545307 A JP S545307A JP 7026477 A JP7026477 A JP 7026477A JP 7026477 A JP7026477 A JP 7026477A JP S545307 A JPS545307 A JP S545307A
Authority
JP
Japan
Prior art keywords
key telephone
channel circuit
external channel
external
telephone
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
JP7026477A
Other languages
Japanese (ja)
Other versions
JPS562816B2 (en
Inventor
Kunitoshi Narita
Jiyuichi Kubo
Masahiro Satou
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.)
Meisei Electric Co Ltd
Original Assignee
Meisei Electric Co Ltd
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 Meisei Electric Co Ltd filed Critical Meisei Electric Co Ltd
Priority to JP7026477A priority Critical patent/JPS545307A/en
Publication of JPS545307A publication Critical patent/JPS545307A/en
Publication of JPS562816B2 publication Critical patent/JPS562816B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP7026477A 1977-06-14 1977-06-14 External channel circuit for key telephone Granted JPS545307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7026477A JPS545307A (en) 1977-06-14 1977-06-14 External channel circuit for key telephone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7026477A JPS545307A (en) 1977-06-14 1977-06-14 External channel circuit for key telephone

Publications (2)

Publication Number Publication Date
JPS545307A true JPS545307A (en) 1979-01-16
JPS562816B2 JPS562816B2 (en) 1981-01-21

Family

ID=13426487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7026477A Granted JPS545307A (en) 1977-06-14 1977-06-14 External channel circuit for key telephone

Country Status (1)

Country Link
JP (1) JPS545307A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122507U (en) * 1983-02-07 1984-08-17 オタリ株式会社 Tape winding diameter detection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122507U (en) * 1983-02-07 1984-08-17 オタリ株式会社 Tape winding diameter detection device

Also Published As

Publication number Publication date
JPS562816B2 (en) 1981-01-21

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