CA381457A - Dispositif d'enseignement - Google Patents

Dispositif d'enseignement

Info

Publication number: CA381457A
Authority: CA; Canada
Prior art keywords: educational device; educational
Prior art date: 1939-05-16
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

CA381457A

Other languages

English (en)

Inventor

Hughson Watkins Grace

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.)

STRATHMORE Co

Original Assignee

STRATHMORE Co

Publication date

1939-05-16

1939-05-16 Application granted granted Critical

1939-05-16 Publication of CA381457A publication Critical patent/CA381457A/fr

Status Expired legal-status Critical Current

Links

CA381457A Dispositif d'enseignement Expired CA381457A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA381457T

Publications (1)

Publication Number	Publication Date
CA381457A true CA381457A (fr)	1939-05-16

Family

ID=35386697

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA381457A Expired CA381457A (fr)			Dispositif d'enseignement

Country Status (1)

Country	Link
CA (1)	CA381457A (fr)

0
- CA CA381457A patent/CA381457A/fr not_active Expired

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