JPH01173893U - - Google Patents

Info

Publication number
JPH01173893U
JPH01173893U JP6326988U JP6326988U JPH01173893U JP H01173893 U JPH01173893 U JP H01173893U JP 6326988 U JP6326988 U JP 6326988U JP 6326988 U JP6326988 U JP 6326988U JP H01173893 U JPH01173893 U JP H01173893U
Authority
JP
Japan
Prior art keywords
entrance
alarm device
time
circuit
exit door
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
JP6326988U
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 JP6326988U priority Critical patent/JPH01173893U/ja
Publication of JPH01173893U publication Critical patent/JPH01173893U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)
JP6326988U 1988-05-13 1988-05-13 Pending JPH01173893U (US07922777-20110412-C00004.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6326988U JPH01173893U (US07922777-20110412-C00004.png) 1988-05-13 1988-05-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6326988U JPH01173893U (US07922777-20110412-C00004.png) 1988-05-13 1988-05-13

Publications (1)

Publication Number Publication Date
JPH01173893U true JPH01173893U (US07922777-20110412-C00004.png) 1989-12-11

Family

ID=31288778

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6326988U Pending JPH01173893U (US07922777-20110412-C00004.png) 1988-05-13 1988-05-13

Country Status (1)

Country Link
JP (1) JPH01173893U (US07922777-20110412-C00004.png)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5764891A (en) * 1980-10-08 1982-04-20 Hitachi Ltd Crime prevention device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5764891A (en) * 1980-10-08 1982-04-20 Hitachi Ltd Crime prevention device

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