TW454707U - Improved structure of tutorial blackboard eraser - Google Patents
Improved structure of tutorial blackboard eraserInfo
- Publication number
- TW454707U TW454707U TW89222174U TW89222174U TW454707U TW 454707 U TW454707 U TW 454707U TW 89222174 U TW89222174 U TW 89222174U TW 89222174 U TW89222174 U TW 89222174U TW 454707 U TW454707 U TW 454707U
- Authority
- TW
- Taiwan
- Prior art keywords
- tutorial
- improved structure
- blackboard eraser
- eraser
- blackboard
- Prior art date
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW89222174U TW454707U (en) | 2000-12-19 | 2000-12-19 | Improved structure of tutorial blackboard eraser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW89222174U TW454707U (en) | 2000-12-19 | 2000-12-19 | Improved structure of tutorial blackboard eraser |
Publications (1)
Publication Number | Publication Date |
---|---|
TW454707U true TW454707U (en) | 2001-09-11 |
Family
ID=21676334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW89222174U TW454707U (en) | 2000-12-19 | 2000-12-19 | Improved structure of tutorial blackboard eraser |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW454707U (en) |
-
2000
- 2000-12-19 TW TW89222174U patent/TW454707U/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GD4K | Issue of patent certificate for granted utility model filed before june 30, 2004 | ||
MM4K | Annulment or lapse of a utility model due to non-payment of fees |