CA397214A - Educational device - Google Patents

Educational device

Info

Publication number
CA397214A
CA397214A CA397214A CA397214DA CA397214A CA 397214 A CA397214 A CA 397214A CA 397214 A CA397214 A CA 397214A CA 397214D A CA397214D A CA 397214DA CA 397214 A CA397214 A CA 397214A
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
CA397214A
Other languages
French (fr)
Inventor
Keilwagen Walter
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA397214A publication Critical patent/CA397214A/en
Expired legal-status Critical Current

Links

CA397214A Educational device Expired CA397214A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA397214T

Publications (1)

Publication Number Publication Date
CA397214A true CA397214A (en) 1941-06-17

Family

ID=35407736

Family Applications (1)

Application Number Title Priority Date Filing Date
CA397214A Expired CA397214A (en) Educational device

Country Status (1)

Country Link
CA (1) CA397214A (en)

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