JPS52138806A - Main equipment of key telephone system - Google Patents

Main equipment of key telephone system

Info

Publication number
JPS52138806A
JPS52138806A JP5531576A JP5531576A JPS52138806A JP S52138806 A JPS52138806 A JP S52138806A JP 5531576 A JP5531576 A JP 5531576A JP 5531576 A JP5531576 A JP 5531576A JP S52138806 A JPS52138806 A JP S52138806A
Authority
JP
Japan
Prior art keywords
key telephone
telephone system
main equipment
equipment
cores
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
JP5531576A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5613054B2 (enExample
Inventor
Koichi Sekiguchi
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.)
Iwatsu Electric Co Ltd
Original Assignee
Iwatsu 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 Iwatsu Electric Co Ltd filed Critical Iwatsu Electric Co Ltd
Priority to JP5531576A priority Critical patent/JPS52138806A/ja
Publication of JPS52138806A publication Critical patent/JPS52138806A/ja
Priority to US06/066,927 priority patent/US4410767A/en
Publication of JPS5613054B2 publication Critical patent/JPS5613054B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP5531576A 1976-05-17 1976-05-17 Main equipment of key telephone system Granted JPS52138806A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP5531576A JPS52138806A (en) 1976-05-17 1976-05-17 Main equipment of key telephone system
US06/066,927 US4410767A (en) 1976-05-17 1979-08-16 Key telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5531576A JPS52138806A (en) 1976-05-17 1976-05-17 Main equipment of key telephone system

Publications (2)

Publication Number Publication Date
JPS52138806A true JPS52138806A (en) 1977-11-19
JPS5613054B2 JPS5613054B2 (enExample) 1981-03-26

Family

ID=12995111

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5531576A Granted JPS52138806A (en) 1976-05-17 1976-05-17 Main equipment of key telephone system

Country Status (1)

Country Link
JP (1) JPS52138806A (enExample)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5440404A (en) * 1977-09-06 1979-03-29 Bridgestone Corp Highly durable pneumatic tyre with multiple ply laminate carcass

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5440404A (en) * 1977-09-06 1979-03-29 Bridgestone Corp Highly durable pneumatic tyre with multiple ply laminate carcass

Also Published As

Publication number Publication date
JPS5613054B2 (enExample) 1981-03-26

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