JPH0332837B2 - - Google Patents

Info

Publication number
JPH0332837B2
JPH0332837B2 JP5543784A JP5543784A JPH0332837B2 JP H0332837 B2 JPH0332837 B2 JP H0332837B2 JP 5543784 A JP5543784 A JP 5543784A JP 5543784 A JP5543784 A JP 5543784A JP H0332837 B2 JPH0332837 B2 JP H0332837B2
Authority
JP
Japan
Prior art keywords
alarm
circuit
disconnection
detection circuit
gas detector
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.)
Expired
Application number
JP5543784A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60198698A (ja
Inventor
Seiki Anazawa
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP59055437A priority Critical patent/JPS60198698A/ja
Publication of JPS60198698A publication Critical patent/JPS60198698A/ja
Publication of JPH0332837B2 publication Critical patent/JPH0332837B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Emergency Alarm Devices (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
JP59055437A 1984-03-22 1984-03-22 インタ−ホン装置 Granted JPS60198698A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59055437A JPS60198698A (ja) 1984-03-22 1984-03-22 インタ−ホン装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59055437A JPS60198698A (ja) 1984-03-22 1984-03-22 インタ−ホン装置

Publications (2)

Publication Number Publication Date
JPS60198698A JPS60198698A (ja) 1985-10-08
JPH0332837B2 true JPH0332837B2 (cs) 1991-05-14

Family

ID=12998567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59055437A Granted JPS60198698A (ja) 1984-03-22 1984-03-22 インタ−ホン装置

Country Status (1)

Country Link
JP (1) JPS60198698A (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6481087A (en) * 1987-09-22 1989-03-27 Hitachi Maxell Ic card data transmission system

Also Published As

Publication number Publication date
JPS60198698A (ja) 1985-10-08

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