JPS52136509A - Key telephone system - Google Patents

Key telephone system

Info

Publication number
JPS52136509A
JPS52136509A JP5343476A JP5343476A JPS52136509A JP S52136509 A JPS52136509 A JP S52136509A JP 5343476 A JP5343476 A JP 5343476A JP 5343476 A JP5343476 A JP 5343476A JP S52136509 A JPS52136509 A JP S52136509A
Authority
JP
Japan
Prior art keywords
telephone system
key telephone
key
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
JP5343476A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5519103B2 (OSRAM
Inventor
Kunitoshi Narita
Hideo Oohashi
Kazuhiko Sugai
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 JP5343476A priority Critical patent/JPS52136509A/ja
Publication of JPS52136509A publication Critical patent/JPS52136509A/ja
Publication of JPS5519103B2 publication Critical patent/JPS5519103B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP5343476A 1976-05-11 1976-05-11 Key telephone system Granted JPS52136509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5343476A JPS52136509A (en) 1976-05-11 1976-05-11 Key telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5343476A JPS52136509A (en) 1976-05-11 1976-05-11 Key telephone system

Publications (2)

Publication Number Publication Date
JPS52136509A true JPS52136509A (en) 1977-11-15
JPS5519103B2 JPS5519103B2 (OSRAM) 1980-05-23

Family

ID=12942727

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5343476A Granted JPS52136509A (en) 1976-05-11 1976-05-11 Key telephone system

Country Status (1)

Country Link
JP (1) JPS52136509A (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53116708A (en) * 1977-03-22 1978-10-12 Tamura Electric Works Ltd Button telephone set
JPS63129756A (ja) * 1986-11-19 1988-06-02 Matsushita Electric Ind Co Ltd 電話端末装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53116708A (en) * 1977-03-22 1978-10-12 Tamura Electric Works Ltd Button telephone set
JPS63129756A (ja) * 1986-11-19 1988-06-02 Matsushita Electric Ind Co Ltd 電話端末装置

Also Published As

Publication number Publication date
JPS5519103B2 (OSRAM) 1980-05-23

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