JPS57143692A - Call chime system - Google Patents

Call chime system

Info

Publication number
JPS57143692A
JPS57143692A JP2886781A JP2886781A JPS57143692A JP S57143692 A JPS57143692 A JP S57143692A JP 2886781 A JP2886781 A JP 2886781A JP 2886781 A JP2886781 A JP 2886781A JP S57143692 A JPS57143692 A JP S57143692A
Authority
JP
Japan
Prior art keywords
chime system
call chime
call
chime
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
JP2886781A
Other languages
Japanese (ja)
Inventor
Youichi Isobe
Yutaka Kojima
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP2886781A priority Critical patent/JPS57143692A/en
Publication of JPS57143692A publication Critical patent/JPS57143692A/en
Pending legal-status Critical Current

Links

Landscapes

  • Alarm Systems (AREA)
JP2886781A 1981-02-28 1981-02-28 Call chime system Pending JPS57143692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2886781A JPS57143692A (en) 1981-02-28 1981-02-28 Call chime system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2886781A JPS57143692A (en) 1981-02-28 1981-02-28 Call chime system

Publications (1)

Publication Number Publication Date
JPS57143692A true JPS57143692A (en) 1982-09-04

Family

ID=12260319

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2886781A Pending JPS57143692A (en) 1981-02-28 1981-02-28 Call chime system

Country Status (1)

Country Link
JP (1) JPS57143692A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60183699A (en) * 1984-03-01 1985-09-19 株式会社東芝 Control circuit for emergency alarm
JP2008159597A (en) * 1996-02-16 2008-07-10 Thomson Consumer Electronics Inc Printed circuit board spark gap

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60183699A (en) * 1984-03-01 1985-09-19 株式会社東芝 Control circuit for emergency alarm
JP2008159597A (en) * 1996-02-16 2008-07-10 Thomson Consumer Electronics Inc Printed circuit board spark gap

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