JPH01135589U - - Google Patents

Info

Publication number
JPH01135589U
JPH01135589U JP3000788U JP3000788U JPH01135589U JP H01135589 U JPH01135589 U JP H01135589U JP 3000788 U JP3000788 U JP 3000788U JP 3000788 U JP3000788 U JP 3000788U JP H01135589 U JPH01135589 U JP H01135589U
Authority
JP
Japan
Prior art keywords
ultrasonic
vehicle
regular intervals
reflected
receives
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
JP3000788U
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 JP3000788U priority Critical patent/JPH01135589U/ja
Publication of JPH01135589U publication Critical patent/JPH01135589U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
  • Transducers For Ultrasonic Waves (AREA)
JP3000788U 1988-03-07 1988-03-07 Pending JPH01135589U (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3000788U JPH01135589U (en]) 1988-03-07 1988-03-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3000788U JPH01135589U (en]) 1988-03-07 1988-03-07

Publications (1)

Publication Number Publication Date
JPH01135589U true JPH01135589U (en]) 1989-09-18

Family

ID=31254685

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3000788U Pending JPH01135589U (en]) 1988-03-07 1988-03-07

Country Status (1)

Country Link
JP (1) JPH01135589U (en])

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