JPH0192830U - - Google Patents

Info

Publication number
JPH0192830U
JPH0192830U JP18980387U JP18980387U JPH0192830U JP H0192830 U JPH0192830 U JP H0192830U JP 18980387 U JP18980387 U JP 18980387U JP 18980387 U JP18980387 U JP 18980387U JP H0192830 U JPH0192830 U JP H0192830U
Authority
JP
Japan
Prior art keywords
book holder
book
illuminance
sensor
alarm
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
JP18980387U
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 JP18980387U priority Critical patent/JPH0192830U/ja
Publication of JPH0192830U publication Critical patent/JPH0192830U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
JP18980387U 1987-12-14 1987-12-14 Pending JPH0192830U (US07321065-20080122-C00160.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18980387U JPH0192830U (US07321065-20080122-C00160.png) 1987-12-14 1987-12-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18980387U JPH0192830U (US07321065-20080122-C00160.png) 1987-12-14 1987-12-14

Publications (1)

Publication Number Publication Date
JPH0192830U true JPH0192830U (US07321065-20080122-C00160.png) 1989-06-19

Family

ID=31480814

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18980387U Pending JPH0192830U (US07321065-20080122-C00160.png) 1987-12-14 1987-12-14

Country Status (1)

Country Link
JP (1) JPH0192830U (US07321065-20080122-C00160.png)

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