JPH0174197U - - Google Patents

Info

Publication number
JPH0174197U
JPH0174197U JP1987170788U JP17078887U JPH0174197U JP H0174197 U JPH0174197 U JP H0174197U JP 1987170788 U JP1987170788 U JP 1987170788U JP 17078887 U JP17078887 U JP 17078887U JP H0174197 U JPH0174197 U JP H0174197U
Authority
JP
Japan
Prior art keywords
ruler
ratio
triangular
paper
diagonal
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
JP1987170788U
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 JP1987170788U priority Critical patent/JPH0174197U/ja
Publication of JPH0174197U publication Critical patent/JPH0174197U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP1987170788U 1987-11-09 1987-11-09 Pending JPH0174197U (US06633782-20031014-M00005.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987170788U JPH0174197U (US06633782-20031014-M00005.png) 1987-11-09 1987-11-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987170788U JPH0174197U (US06633782-20031014-M00005.png) 1987-11-09 1987-11-09

Publications (1)

Publication Number Publication Date
JPH0174197U true JPH0174197U (US06633782-20031014-M00005.png) 1989-05-19

Family

ID=31462035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987170788U Pending JPH0174197U (US06633782-20031014-M00005.png) 1987-11-09 1987-11-09

Country Status (1)

Country Link
JP (1) JPH0174197U (US06633782-20031014-M00005.png)

Similar Documents

Publication Publication Date Title
JPH0174197U (US06633782-20031014-M00005.png)
JPS6168764U (US06633782-20031014-M00005.png)
JPH0174198U (US06633782-20031014-M00005.png)
JPS6183971U (US06633782-20031014-M00005.png)
JPH0358169U (US06633782-20031014-M00005.png)
JPS646982U (US06633782-20031014-M00005.png)
JPS62130029U (US06633782-20031014-M00005.png)
JPS63170246U (US06633782-20031014-M00005.png)
JPH03123017U (US06633782-20031014-M00005.png)
JPH01134126U (US06633782-20031014-M00005.png)
JPS61177110U (US06633782-20031014-M00005.png)
JPS61200093U (US06633782-20031014-M00005.png)
JPS6179988U (US06633782-20031014-M00005.png)
JPH03122689U (US06633782-20031014-M00005.png)
JPS6393986U (US06633782-20031014-M00005.png)
JPS6364807U (US06633782-20031014-M00005.png)
JPH01139276U (US06633782-20031014-M00005.png)
JPH0410732U (US06633782-20031014-M00005.png)
JPS6154048U (US06633782-20031014-M00005.png)
JPS6150500U (US06633782-20031014-M00005.png)
JPH0231446U (US06633782-20031014-M00005.png)
JPH02134035U (US06633782-20031014-M00005.png)
JPS62153393U (US06633782-20031014-M00005.png)
JPH0321403U (US06633782-20031014-M00005.png)
JPS6299962U (US06633782-20031014-M00005.png)