CA147952A - Educational device - Google Patents

Educational device

Info

Publication number
CA147952A
CA147952A CA000147952A CA147952DA CA147952A CA 147952 A CA147952 A CA 147952A CA 000147952 A CA000147952 A CA 000147952A CA 147952D A CA147952D A CA 147952DA CA 147952 A CA147952 A CA 147952A
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
CA000147952A
Other languages
French (fr)
Inventor
Stephen Cresswell Matthews
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA147952A publication Critical patent/CA147952A/en
Expired legal-status Critical Current

Links

CA000147952A 1913-01-21 1913-01-21 Educational device Expired CA147952A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA147952T 1913-01-21

Publications (1)

Publication Number Publication Date
CA147952A true CA147952A (en) 1913-05-13

Family

ID=45267666

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000147952A Expired CA147952A (en) 1913-01-21 1913-01-21 Educational device

Country Status (1)

Country Link
CA (1) CA147952A (en)

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