JPS63169749U - - Google Patents
Info
- Publication number
- JPS63169749U JPS63169749U JP6041787U JP6041787U JPS63169749U JP S63169749 U JPS63169749 U JP S63169749U JP 6041787 U JP6041787 U JP 6041787U JP 6041787 U JP6041787 U JP 6041787U JP S63169749 U JPS63169749 U JP S63169749U
- Authority
- JP
- Japan
- Prior art keywords
- writing
- signal
- outputs
- sensor
- detects
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Drawing Aids And Blackboards (AREA)
- Facsimiles In General (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6041787U JPS63169749U (cs) | 1987-04-20 | 1987-04-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6041787U JPS63169749U (cs) | 1987-04-20 | 1987-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63169749U true JPS63169749U (cs) | 1988-11-04 |
Family
ID=30892810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6041787U Pending JPS63169749U (cs) | 1987-04-20 | 1987-04-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63169749U (cs) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6475297A (en) * | 1987-09-17 | 1989-03-20 | Ricoh Kk | Electronic blackboard |
-
1987
- 1987-04-20 JP JP6041787U patent/JPS63169749U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6475297A (en) * | 1987-09-17 | 1989-03-20 | Ricoh Kk | Electronic blackboard |
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