CA420607A - Dispositif d'enseignement - Google Patents

Dispositif d'enseignement

Info

Publication number
CA420607A
CA420607A CA420607A CA420607DA CA420607A CA 420607 A CA420607 A CA 420607A CA 420607 A CA420607 A CA 420607A CA 420607D A CA420607D A CA 420607DA CA 420607 A CA420607 A CA 420607A
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
CA420607A
Other languages
English (en)
Inventor
R. Oesch Clark
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 CA420607A publication Critical patent/CA420607A/fr
Expired legal-status Critical Current

Links

CA420607A Dispositif d'enseignement Expired CA420607A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA420607T

Publications (1)

Publication Number Publication Date
CA420607A true CA420607A (fr) 1944-06-06

Family

ID=35531543

Family Applications (1)

Application Number Title Priority Date Filing Date
CA420607A Expired CA420607A (fr) Dispositif d'enseignement

Country Status (1)

Country Link
CA (1) CA420607A (fr)

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