JPH03126692U - - Google Patents

Info

Publication number
JPH03126692U
JPH03126692U JP3666390U JP3666390U JPH03126692U JP H03126692 U JPH03126692 U JP H03126692U JP 3666390 U JP3666390 U JP 3666390U JP 3666390 U JP3666390 U JP 3666390U JP H03126692 U JPH03126692 U JP H03126692U
Authority
JP
Japan
Prior art keywords
circular
plate
hole
transparent
center
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
JP3666390U
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 JP3666390U priority Critical patent/JPH03126692U/ja
Publication of JPH03126692U publication Critical patent/JPH03126692U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP3666390U 1990-04-05 1990-04-05 Pending JPH03126692U (US07923587-20110412-C00022.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3666390U JPH03126692U (US07923587-20110412-C00022.png) 1990-04-05 1990-04-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3666390U JPH03126692U (US07923587-20110412-C00022.png) 1990-04-05 1990-04-05

Publications (1)

Publication Number Publication Date
JPH03126692U true JPH03126692U (US07923587-20110412-C00022.png) 1991-12-20

Family

ID=31543090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3666390U Pending JPH03126692U (US07923587-20110412-C00022.png) 1990-04-05 1990-04-05

Country Status (1)

Country Link
JP (1) JPH03126692U (US07923587-20110412-C00022.png)

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