JPS58172254U - ボタン電話装置 - Google Patents

ボタン電話装置

Info

Publication number
JPS58172254U
JPS58172254U JP6926082U JP6926082U JPS58172254U JP S58172254 U JPS58172254 U JP S58172254U JP 6926082 U JP6926082 U JP 6926082U JP 6926082 U JP6926082 U JP 6926082U JP S58172254 U JPS58172254 U JP S58172254U
Authority
JP
Japan
Prior art keywords
telephone device
button telephone
communication path
central office
extension communication
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
JP6926082U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0212776Y2 (enrdf_load_stackoverflow
Inventor
慎一 関口
的場　信夫
正志 鈴木
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6926082U priority Critical patent/JPS58172254U/ja
Publication of JPS58172254U publication Critical patent/JPS58172254U/ja
Application granted granted Critical
Publication of JPH0212776Y2 publication Critical patent/JPH0212776Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP6926082U 1982-05-11 1982-05-11 ボタン電話装置 Granted JPS58172254U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6926082U JPS58172254U (ja) 1982-05-11 1982-05-11 ボタン電話装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6926082U JPS58172254U (ja) 1982-05-11 1982-05-11 ボタン電話装置

Publications (2)

Publication Number Publication Date
JPS58172254U true JPS58172254U (ja) 1983-11-17
JPH0212776Y2 JPH0212776Y2 (enrdf_load_stackoverflow) 1990-04-10

Family

ID=30078994

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6926082U Granted JPS58172254U (ja) 1982-05-11 1982-05-11 ボタン電話装置

Country Status (1)

Country Link
JP (1) JPS58172254U (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54148408A (en) * 1978-05-15 1979-11-20 Oki Electric Ind Co Ltd Transmission line return control system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54148408A (en) * 1978-05-15 1979-11-20 Oki Electric Ind Co Ltd Transmission line return control system

Also Published As

Publication number Publication date
JPH0212776Y2 (enrdf_load_stackoverflow) 1990-04-10

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