CA474121A - Dispositifs d'enseignement - Google Patents

Dispositifs d'enseignement

Info

Publication number: CA474121A
Authority: CA; Canada
Prior art keywords: teaching devices; teaching; devices
Prior art date: 1951-06-05
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

CA474121A

Other languages

English (en)

Inventor

Jean Hawkins Barbara

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

1951-06-05

1951-06-05 Application granted granted Critical

1951-06-05 Publication of CA474121A publication Critical patent/CA474121A/fr

Status Expired legal-status Critical Current

Links

CA474121A Dispositifs d'enseignement Expired CA474121A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA474121T

Publications (1)

Publication Number	Publication Date
CA474121A true CA474121A (fr)	1951-06-05

Family

ID=35608097

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA474121A Expired CA474121A (fr)			Dispositifs d'enseignement

Country Status (1)

Country	Link
CA (1)	CA474121A (fr)

0
- CA CA474121A patent/CA474121A/fr not_active Expired

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