JPH0184183U - - Google Patents

Info

Publication number
JPH0184183U
JPH0184183U JP1987176971U JP17697187U JPH0184183U JP H0184183 U JPH0184183 U JP H0184183U JP 1987176971 U JP1987176971 U JP 1987176971U JP 17697187 U JP17697187 U JP 17697187U JP H0184183 U JPH0184183 U JP H0184183U
Authority
JP
Japan
Prior art keywords
light
detection device
active optical
predetermined frequency
intruder detection
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
JP1987176971U
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 JP1987176971U priority Critical patent/JPH0184183U/ja
Publication of JPH0184183U publication Critical patent/JPH0184183U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)
JP1987176971U 1987-11-20 1987-11-20 Pending JPH0184183U (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987176971U JPH0184183U (enrdf_load_stackoverflow) 1987-11-20 1987-11-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987176971U JPH0184183U (enrdf_load_stackoverflow) 1987-11-20 1987-11-20

Publications (1)

Publication Number Publication Date
JPH0184183U true JPH0184183U (enrdf_load_stackoverflow) 1989-06-05

Family

ID=31468661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987176971U Pending JPH0184183U (enrdf_load_stackoverflow) 1987-11-20 1987-11-20

Country Status (1)

Country Link
JP (1) JPH0184183U (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03154198A (ja) * 1989-11-10 1991-07-02 Teiou Tsushin Kogyo Kk 盗難防止システム

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03154198A (ja) * 1989-11-10 1991-07-02 Teiou Tsushin Kogyo Kk 盗難防止システム

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