JPS643991U - - Google Patents

Info

Publication number
JPS643991U
JPS643991U JP9686287U JP9686287U JPS643991U JP S643991 U JPS643991 U JP S643991U JP 9686287 U JP9686287 U JP 9686287U JP 9686287 U JP9686287 U JP 9686287U JP S643991 U JPS643991 U JP S643991U
Authority
JP
Japan
Prior art keywords
detection
sensor
detected object
utility
area
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.)
Granted
Application number
JP9686287U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0542555Y2 (en]
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 JP1987096862U priority Critical patent/JPH0542555Y2/ja
Publication of JPS643991U publication Critical patent/JPS643991U/ja
Application granted granted Critical
Publication of JPH0542555Y2 publication Critical patent/JPH0542555Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Fencing (AREA)
  • Burglar Alarm Systems (AREA)
JP1987096862U 1987-06-23 1987-06-23 Expired - Lifetime JPH0542555Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987096862U JPH0542555Y2 (en]) 1987-06-23 1987-06-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987096862U JPH0542555Y2 (en]) 1987-06-23 1987-06-23

Publications (2)

Publication Number Publication Date
JPS643991U true JPS643991U (en]) 1989-01-11
JPH0542555Y2 JPH0542555Y2 (en]) 1993-10-26

Family

ID=31321991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987096862U Expired - Lifetime JPH0542555Y2 (en]) 1987-06-23 1987-06-23

Country Status (1)

Country Link
JP (1) JPH0542555Y2 (en])

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55110393A (en) * 1979-02-15 1980-08-25 Matsushita Electric Works Ltd Crime prevention device using fence
JPS59216078A (ja) * 1983-08-08 1984-12-06 Optic Kk 来客報知器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55110393A (en) * 1979-02-15 1980-08-25 Matsushita Electric Works Ltd Crime prevention device using fence
JPS59216078A (ja) * 1983-08-08 1984-12-06 Optic Kk 来客報知器

Also Published As

Publication number Publication date
JPH0542555Y2 (en]) 1993-10-26

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