JPH0189195U - - Google Patents

Info

Publication number
JPH0189195U
JPH0189195U JP18529987U JP18529987U JPH0189195U JP H0189195 U JPH0189195 U JP H0189195U JP 18529987 U JP18529987 U JP 18529987U JP 18529987 U JP18529987 U JP 18529987U JP H0189195 U JPH0189195 U JP H0189195U
Authority
JP
Japan
Prior art keywords
ruler board
semicircle
attach
circumference
scale
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
JP18529987U
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 JP18529987U priority Critical patent/JPH0189195U/ja
Publication of JPH0189195U publication Critical patent/JPH0189195U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP18529987U 1987-12-04 1987-12-04 Pending JPH0189195U (US20100223739A1-20100909-C00005.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18529987U JPH0189195U (US20100223739A1-20100909-C00005.png) 1987-12-04 1987-12-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18529987U JPH0189195U (US20100223739A1-20100909-C00005.png) 1987-12-04 1987-12-04

Publications (1)

Publication Number Publication Date
JPH0189195U true JPH0189195U (US20100223739A1-20100909-C00005.png) 1989-06-13

Family

ID=31476619

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18529987U Pending JPH0189195U (US20100223739A1-20100909-C00005.png) 1987-12-04 1987-12-04

Country Status (1)

Country Link
JP (1) JPH0189195U (US20100223739A1-20100909-C00005.png)

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