CA776372A - Educational device - Google Patents
Educational deviceInfo
- Publication number
- CA776372A CA776372A CA776372A CA776372DA CA776372A CA 776372 A CA776372 A CA 776372A CA 776372 A CA776372 A CA 776372A CA 776372D A CA776372D A CA 776372DA CA 776372 A CA776372 A CA 776372A
- Authority
- CA
- Canada
- Prior art keywords
- educational device
- educational
- 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 |
---|---|---|---|
CA776372T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA776372A true CA776372A (en) | 1968-01-23 |
Family
ID=36223667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA776372A Expired CA776372A (en) | Educational device |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA776372A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3755938A (en) * | 1971-06-14 | 1973-09-04 | A Bytwork | Graphmatic magnegraph |
US4255837A (en) * | 1978-07-27 | 1981-03-17 | Magnetoplan H. Jo. Holtz | Magnetic clip device |
-
0
- CA CA776372A patent/CA776372A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3755938A (en) * | 1971-06-14 | 1973-09-04 | A Bytwork | Graphmatic magnegraph |
US4255837A (en) * | 1978-07-27 | 1981-03-17 | Magnetoplan H. Jo. Holtz | Magnetic clip device |
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