CA714749A - Educational device - Google Patents

Educational device

Info

Publication number
CA714749A
CA714749A CA714749A CA714749DA CA714749A CA 714749 A CA714749 A CA 714749A CA 714749 A CA714749 A CA 714749A CA 714749D A CA714749D A CA 714749DA CA 714749 A CA714749 A CA 714749A
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
Application number
CA714749A
Inventor
D. Porteus Stanley
L. Diamond Aaron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PHD
Original Assignee
PHD
Publication date
Application granted granted Critical
Publication of CA714749A publication Critical patent/CA714749A/en
Expired legal-status Critical Current

Links

CA714749A Educational device Expired CA714749A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA714749T

Publications (1)

Publication Number Publication Date
CA714749A true CA714749A (en) 1965-08-03

Family

ID=36044044

Family Applications (1)

Application Number Title Priority Date Filing Date
CA714749A Expired CA714749A (en) Educational device

Country Status (1)

Country Link
CA (1) CA714749A (en)

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