CA253447A - Appareil d'enseignement - Google Patents

Appareil d'enseignement

Info

Publication number
CA253447A
CA253447A CA253447A CA253447DA CA253447A CA 253447 A CA253447 A CA 253447A CA 253447 A CA253447 A CA 253447A CA 253447D A CA253447D A CA 253447DA CA 253447 A CA253447 A CA 253447A
Authority
CA
Canada
Prior art keywords
educational appliance
educational
appliance
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
CA253447A
Other languages
English (en)
Inventor
M. Rogerson Wallace
Original Assignee
M. Rogerson Wallace
Publication date
Priority to CA253447T priority Critical
Application granted granted Critical
Publication of CA253447A publication Critical patent/CA253447A/fr
Expired legal-status Critical Current

Links

CA253447A Appareil d'enseignement Expired CA253447A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA253447T

Publications (1)

Publication Number Publication Date
CA253447A true CA253447A (fr) 1925-09-08

Family

ID=35161997

Family Applications (1)

Application Number Title Priority Date Filing Date
CA253447A Expired CA253447A (fr) Appareil d'enseignement

Country Status (1)

Country Link
CA (1) CA253447A (fr)

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