JPS6474896A - Key telephone system - Google Patents

Key telephone system

Info

Publication number
JPS6474896A
JPS6474896A JP23308387A JP23308387A JPS6474896A JP S6474896 A JPS6474896 A JP S6474896A JP 23308387 A JP23308387 A JP 23308387A JP 23308387 A JP23308387 A JP 23308387A JP S6474896 A JPS6474896 A JP S6474896A
Authority
JP
Japan
Prior art keywords
line wire
signal
seconds
time
dial
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
JP23308387A
Other languages
English (en)
Inventor
Hiroko Takeuchi
Yoshiichi Sano
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP23308387A priority Critical patent/JPS6474896A/ja
Publication of JPS6474896A publication Critical patent/JPS6474896A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Sub-Exchange Stations And Push- Button Telephones (AREA)
JP23308387A 1987-09-17 1987-09-17 Key telephone system Pending JPS6474896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23308387A JPS6474896A (en) 1987-09-17 1987-09-17 Key telephone system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23308387A JPS6474896A (en) 1987-09-17 1987-09-17 Key telephone system

Publications (1)

Publication Number Publication Date
JPS6474896A true JPS6474896A (en) 1989-03-20

Family

ID=16949533

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23308387A Pending JPS6474896A (en) 1987-09-17 1987-09-17 Key telephone system

Country Status (1)

Country Link
JP (1) JPS6474896A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06311265A (ja) * 1993-04-22 1994-11-04 Nec Corp 磁気カード式公衆電話方式
US5921315A (en) * 1995-06-07 1999-07-13 Heat Pipe Technology, Inc. Three-dimensional heat pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06311265A (ja) * 1993-04-22 1994-11-04 Nec Corp 磁気カード式公衆電話方式
US5921315A (en) * 1995-06-07 1999-07-13 Heat Pipe Technology, Inc. Three-dimensional heat pipe

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