CA718162A - Height-adjustable school blackboard - Google Patents
Height-adjustable school blackboardInfo
- Publication number
- CA718162A CA718162A CA718162A CA718162DA CA718162A CA 718162 A CA718162 A CA 718162A CA 718162 A CA718162 A CA 718162A CA 718162D A CA718162D A CA 718162DA CA 718162 A CA718162 A CA 718162A
- Authority
- CA
- Canada
- Prior art keywords
- height
- adjustable school
- school blackboard
- blackboard
- adjustable
- 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.)
- Expired
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA718162T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA718162A true CA718162A (en) | 1965-09-21 |
Family
ID=36053738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA718162A Expired CA718162A (en) | Height-adjustable school blackboard |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA718162A (en) |
-
0
- CA CA718162A patent/CA718162A/en not_active Expired
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