JPS60178189U - 黒板のチヨ−ク粉清掃装置 - Google Patents
黒板のチヨ−ク粉清掃装置Info
- Publication number
- JPS60178189U JPS60178189U JP6516684U JP6516684U JPS60178189U JP S60178189 U JPS60178189 U JP S60178189U JP 6516684 U JP6516684 U JP 6516684U JP 6516684 U JP6516684 U JP 6516684U JP S60178189 U JPS60178189 U JP S60178189U
- Authority
- JP
- Japan
- Prior art keywords
- chalk powder
- cleaning device
- box
- blackboard
- storage frame
- 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.)
- Granted
Links
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title claims description 8
- 238000004140 cleaning Methods 0.000 title claims 2
Landscapes
- Drawing Aids And Blackboards (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6516684U JPS60178189U (ja) | 1984-05-02 | 1984-05-02 | 黒板のチヨ−ク粉清掃装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6516684U JPS60178189U (ja) | 1984-05-02 | 1984-05-02 | 黒板のチヨ−ク粉清掃装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60178189U true JPS60178189U (ja) | 1985-11-26 |
JPH0223430Y2 JPH0223430Y2 (enrdf_load_stackoverflow) | 1990-06-26 |
Family
ID=30596916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6516684U Granted JPS60178189U (ja) | 1984-05-02 | 1984-05-02 | 黒板のチヨ−ク粉清掃装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60178189U (enrdf_load_stackoverflow) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0390994U (enrdf_load_stackoverflow) * | 1989-12-28 | 1991-09-17 |
-
1984
- 1984-05-02 JP JP6516684U patent/JPS60178189U/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0390994U (enrdf_load_stackoverflow) * | 1989-12-28 | 1991-09-17 |
Also Published As
Publication number | Publication date |
---|---|
JPH0223430Y2 (enrdf_load_stackoverflow) | 1990-06-26 |
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