JPS643998U - - Google Patents

Info

Publication number
JPS643998U
JPS643998U JP9726887U JP9726887U JPS643998U JP S643998 U JPS643998 U JP S643998U JP 9726887 U JP9726887 U JP 9726887U JP 9726887 U JP9726887 U JP 9726887U JP S643998 U JPS643998 U JP S643998U
Authority
JP
Japan
Prior art keywords
alarm
variable resistor
change
sound pressure
horn
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
JP9726887U
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 JP9726887U priority Critical patent/JPS643998U/ja
Publication of JPS643998U publication Critical patent/JPS643998U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Alarm Devices (AREA)
JP9726887U 1987-06-26 1987-06-26 Pending JPS643998U (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9726887U JPS643998U (enrdf_load_stackoverflow) 1987-06-26 1987-06-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9726887U JPS643998U (enrdf_load_stackoverflow) 1987-06-26 1987-06-26

Publications (1)

Publication Number Publication Date
JPS643998U true JPS643998U (enrdf_load_stackoverflow) 1989-01-11

Family

ID=31322581

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9726887U Pending JPS643998U (enrdf_load_stackoverflow) 1987-06-26 1987-06-26

Country Status (1)

Country Link
JP (1) JPS643998U (enrdf_load_stackoverflow)

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