JPS6431489U - - Google Patents

Info

Publication number
JPS6431489U
JPS6431489U JP12497787U JP12497787U JPS6431489U JP S6431489 U JPS6431489 U JP S6431489U JP 12497787 U JP12497787 U JP 12497787U JP 12497787 U JP12497787 U JP 12497787U JP S6431489 U JPS6431489 U JP S6431489U
Authority
JP
Japan
Prior art keywords
switch
audio
amplification circuit
voice
speaker
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
JP12497787U
Other languages
English (en)
Japanese (ja)
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 filed Critical
Priority to JP12497787U priority Critical patent/JPS6431489U/ja
Publication of JPS6431489U publication Critical patent/JPS6431489U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Alarm Systems (AREA)
  • Fire Alarms (AREA)
JP12497787U 1987-08-17 1987-08-17 Pending JPS6431489U (US07413550-20080819-C00001.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12497787U JPS6431489U (US07413550-20080819-C00001.png) 1987-08-17 1987-08-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12497787U JPS6431489U (US07413550-20080819-C00001.png) 1987-08-17 1987-08-17

Publications (1)

Publication Number Publication Date
JPS6431489U true JPS6431489U (US07413550-20080819-C00001.png) 1989-02-27

Family

ID=31375174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12497787U Pending JPS6431489U (US07413550-20080819-C00001.png) 1987-08-17 1987-08-17

Country Status (1)

Country Link
JP (1) JPS6431489U (US07413550-20080819-C00001.png)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61190694A (ja) * 1985-02-20 1986-08-25 株式会社東芝 メツセ−ジ制御システム

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61190694A (ja) * 1985-02-20 1986-08-25 株式会社東芝 メツセ−ジ制御システム

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