JPS63130293U - - Google Patents

Info

Publication number
JPS63130293U
JPS63130293U JP2228787U JP2228787U JPS63130293U JP S63130293 U JPS63130293 U JP S63130293U JP 2228787 U JP2228787 U JP 2228787U JP 2228787 U JP2228787 U JP 2228787U JP S63130293 U JPS63130293 U JP S63130293U
Authority
JP
Japan
Prior art keywords
base
penetrates
back surface
ruler
thin groove
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
JP2228787U
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 JP2228787U priority Critical patent/JPS63130293U/ja
Publication of JPS63130293U publication Critical patent/JPS63130293U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP2228787U 1987-02-18 1987-02-18 Pending JPS63130293U (enrdf_load_html_response)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2228787U JPS63130293U (enrdf_load_html_response) 1987-02-18 1987-02-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2228787U JPS63130293U (enrdf_load_html_response) 1987-02-18 1987-02-18

Publications (1)

Publication Number Publication Date
JPS63130293U true JPS63130293U (enrdf_load_html_response) 1988-08-25

Family

ID=30819529

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2228787U Pending JPS63130293U (enrdf_load_html_response) 1987-02-18 1987-02-18

Country Status (1)

Country Link
JP (1) JPS63130293U (enrdf_load_html_response)

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