JPS52147004A - Pushhbutton telephone system - Google Patents

Pushhbutton telephone system

Info

Publication number
JPS52147004A
JPS52147004A JP6364076A JP6364076A JPS52147004A JP S52147004 A JPS52147004 A JP S52147004A JP 6364076 A JP6364076 A JP 6364076A JP 6364076 A JP6364076 A JP 6364076A JP S52147004 A JPS52147004 A JP S52147004A
Authority
JP
Japan
Prior art keywords
pushhbutton
telephone system
telephone
pushhbutton 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.)
Pending
Application number
JP6364076A
Other languages
Japanese (ja)
Inventor
Katsuo Iwasaki
Riyouichi Sakamoto
Yukio Ida
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.)
Nakayo Telecommunications Inc
Original Assignee
Nakayo Telecommunications Inc
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 Nakayo Telecommunications Inc filed Critical Nakayo Telecommunications Inc
Priority to JP6364076A priority Critical patent/JPS52147004A/en
Publication of JPS52147004A publication Critical patent/JPS52147004A/en
Pending legal-status Critical Current

Links

Landscapes

  • Interface Circuits In Exchanges (AREA)
JP6364076A 1976-06-02 1976-06-02 Pushhbutton telephone system Pending JPS52147004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6364076A JPS52147004A (en) 1976-06-02 1976-06-02 Pushhbutton telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6364076A JPS52147004A (en) 1976-06-02 1976-06-02 Pushhbutton telephone system

Publications (1)

Publication Number Publication Date
JPS52147004A true JPS52147004A (en) 1977-12-07

Family

ID=13235146

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6364076A Pending JPS52147004A (en) 1976-06-02 1976-06-02 Pushhbutton telephone system

Country Status (1)

Country Link
JP (1) JPS52147004A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61182365A (en) * 1985-02-07 1986-08-15 Matsushita Electric Works Ltd Urgent telephone equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61182365A (en) * 1985-02-07 1986-08-15 Matsushita Electric Works Ltd Urgent telephone equipment

Similar Documents

Publication Publication Date Title
JPS52155934A (en) Interrcomputer communication system
JPS52116031A (en) Communication system
AU3135877A (en) Electronic telephone system
JPS52149008A (en) Telephone system
JPS5384602A (en) Radio telephone system
JPS5350603A (en) Conference telephone system
PT66254B (en) Loudspeaker system
JPS52113104A (en) Communication system
JPS52149452A (en) Communication system
JPS52141502A (en) Communication system
JPS5375709A (en) Handdfree telephone set
GB1546559A (en) Multi-pary telephone system
JPS5294005A (en) Key telephone system
JPS5330317A (en) Loudspeaker system
JPS5347709A (en) Communication system
JPS5330802A (en) Key telephone system
JPS52120710A (en) Extension telephone system
JPS52147004A (en) Pushhbutton telephone system
JPS53909A (en) Abbreviated dialling system
JPS5345101A (en) Key telephone system
JPS52136509A (en) Key telephone system
JPS5375801A (en) Telephone system
JPS5343404A (en) Antiiexplosion telephone system
JPS5313807A (en) Telephone system
JPS52129206A (en) Telephone system