JPH0230949Y2 - - Google Patents

Info

Publication number
JPH0230949Y2
JPH0230949Y2 JP1982174937U JP17493782U JPH0230949Y2 JP H0230949 Y2 JPH0230949 Y2 JP H0230949Y2 JP 1982174937 U JP1982174937 U JP 1982174937U JP 17493782 U JP17493782 U JP 17493782U JP H0230949 Y2 JPH0230949 Y2 JP H0230949Y2
Authority
JP
Japan
Prior art keywords
telephone
line
power
circuit
relay
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
JP1982174937U
Other languages
English (en)
Japanese (ja)
Other versions
JPS5981153U (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 JP17493782U priority Critical patent/JPS5981153U/ja
Publication of JPS5981153U publication Critical patent/JPS5981153U/ja
Application granted granted Critical
Publication of JPH0230949Y2 publication Critical patent/JPH0230949Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP17493782U 1982-11-20 1982-11-20 停電時におけるボタン電話装置の通話品質保証回路 Granted JPS5981153U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17493782U JPS5981153U (ja) 1982-11-20 1982-11-20 停電時におけるボタン電話装置の通話品質保証回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17493782U JPS5981153U (ja) 1982-11-20 1982-11-20 停電時におけるボタン電話装置の通話品質保証回路

Publications (2)

Publication Number Publication Date
JPS5981153U JPS5981153U (ja) 1984-06-01
JPH0230949Y2 true JPH0230949Y2 (OSRAM) 1990-08-21

Family

ID=30380719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17493782U Granted JPS5981153U (ja) 1982-11-20 1982-11-20 停電時におけるボタン電話装置の通話品質保証回路

Country Status (1)

Country Link
JP (1) JPS5981153U (OSRAM)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5623945U (OSRAM) * 1979-07-31 1981-03-04
JPS5686563A (en) * 1979-12-17 1981-07-14 Nec Corp Button telephone set

Also Published As

Publication number Publication date
JPS5981153U (ja) 1984-06-01

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