JPH02138398U - - Google Patents

Info

Publication number
JPH02138398U
JPH02138398U JP4410189U JP4410189U JPH02138398U JP H02138398 U JPH02138398 U JP H02138398U JP 4410189 U JP4410189 U JP 4410189U JP 4410189 U JP4410189 U JP 4410189U JP H02138398 U JPH02138398 U JP H02138398U
Authority
JP
Japan
Prior art keywords
line
receiver
repeater
disaster prevention
detection means
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
JP4410189U
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 JP4410189U priority Critical patent/JPH02138398U/ja
Publication of JPH02138398U publication Critical patent/JPH02138398U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Fire Alarms (AREA)
  • Alarm Systems (AREA)
JP4410189U 1989-04-15 1989-04-15 Pending JPH02138398U (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4410189U JPH02138398U (enrdf_load_stackoverflow) 1989-04-15 1989-04-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4410189U JPH02138398U (enrdf_load_stackoverflow) 1989-04-15 1989-04-15

Publications (1)

Publication Number Publication Date
JPH02138398U true JPH02138398U (enrdf_load_stackoverflow) 1990-11-19

Family

ID=31557100

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4410189U Pending JPH02138398U (enrdf_load_stackoverflow) 1989-04-15 1989-04-15

Country Status (1)

Country Link
JP (1) JPH02138398U (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62248098A (ja) * 1986-04-22 1987-10-29 能美防災株式会社 火災報知設備の常時断線監視装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62248098A (ja) * 1986-04-22 1987-10-29 能美防災株式会社 火災報知設備の常時断線監視装置

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