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
Links
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Drawing Aids And Blackboards (AREA)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000006395A1 (fr) * | 1998-07-30 | 2000-02-10 | Ricoh Company, Ltd. | Systeme de tableau noir electronique |
-
1987
- 1987-03-12 JP JP3655787U patent/JPS63144291U/ja active Pending
Cited By (1)
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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