JPS6294891U - - Google Patents
Info
- Publication number
- JPS6294891U JPS6294891U JP18751085U JP18751085U JPS6294891U JP S6294891 U JPS6294891 U JP S6294891U JP 18751085 U JP18751085 U JP 18751085U JP 18751085 U JP18751085 U JP 18751085U JP S6294891 U JPS6294891 U JP S6294891U
- Authority
- JP
- Japan
- Prior art keywords
- blackboard
- blackboard sheet
- sheet side
- sensor
- housing
- 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
- 230000003287 optical effect Effects 0.000 claims description 2
Landscapes
- Drawing Aids And Blackboards (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
- Image Input (AREA)
- Facsimiles In General (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18751085U JPS6294891U (2) | 1985-12-05 | 1985-12-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18751085U JPS6294891U (2) | 1985-12-05 | 1985-12-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6294891U true JPS6294891U (2) | 1987-06-17 |
Family
ID=31138037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18751085U Pending JPS6294891U (2) | 1985-12-05 | 1985-12-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6294891U (2) |
-
1985
- 1985-12-05 JP JP18751085U patent/JPS6294891U/ja active Pending
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