CA147952A - Dispositif d'ensignement - Google Patents

Dispositif d'ensignement

Info

Publication number: CA147952A
Authority: CA; Canada
Prior art keywords: educational device; educational
Prior art date: 1913-01-21
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

English (en)

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.)

1913-01-21

Filing date

1913-01-21

Publication date

1913-05-13

1913-01-21 Application filed by Individual filed Critical Individual

1913-05-13 Application granted granted Critical

1913-05-13 Publication of CA147952A publication Critical patent/CA147952A/fr

Status Expired legal-status Critical Current

Links

CA000147952A 1913-01-21 1913-01-21 Dispositif d'ensignement Expired CA147952A (fr)

Applications Claiming Priority (1)

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

Publications (1)

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

Family

ID=45267666

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000147952A Expired CA147952A (fr)	1913-01-21	1913-01-21	Dispositif d'ensignement

Country Status (1)

Country	Link
CA (1)	CA147952A (fr)

1913
- 1913-01-21 CA CA000147952A patent/CA147952A/fr not_active Expired

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