JPS63144291U - - Google Patents

Info

Publication number
JPS63144291U
JPS63144291U JP3655787U JP3655787U JPS63144291U JP S63144291 U JPS63144291 U JP S63144291U JP 3655787 U JP3655787 U JP 3655787U JP 3655787 U JP3655787 U JP 3655787U JP S63144291 U JPS63144291 U JP S63144291U
Authority
JP
Japan
Prior art keywords
writing medium
medium
sheet
image information
information written
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
JP3655787U
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 JP3655787U priority Critical patent/JPS63144291U/ja
Publication of JPS63144291U publication Critical patent/JPS63144291U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)
JP3655787U 1987-03-12 1987-03-12 Pending JPS63144291U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3655787U JPS63144291U (zh) 1987-03-12 1987-03-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3655787U JPS63144291U (zh) 1987-03-12 1987-03-12

Publications (1)

Publication Number Publication Date
JPS63144291U true JPS63144291U (zh) 1988-09-22

Family

ID=30847073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3655787U Pending JPS63144291U (zh) 1987-03-12 1987-03-12

Country Status (1)

Country Link
JP (1) JPS63144291U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000006395A1 (fr) * 1998-07-30 2000-02-10 Ricoh Company, Ltd. Systeme de tableau noir electronique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000006395A1 (fr) * 1998-07-30 2000-02-10 Ricoh Company, Ltd. Systeme de tableau noir electronique

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