FR730674A - Concentric disc device for educational use - Google Patents

Concentric disc device for educational use

Info

Publication number
FR730674A
FR730674A FR730674DA FR730674A FR 730674 A FR730674 A FR 730674A FR 730674D A FR730674D A FR 730674DA FR 730674 A FR730674 A FR 730674A
Authority
FR
France
Prior art keywords
disc device
concentric disc
educational use
educational
concentric
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
Other languages
French (fr)
Inventor
Emile Robert
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 filed Critical
Application granted granted Critical
Publication of FR730674A publication Critical patent/FR730674A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B17/00—Teaching reading
FR730674D 1932-01-29 1932-01-29 Concentric disc device for educational use Expired FR730674A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR730674T 1932-01-29

Publications (1)

Publication Number Publication Date
FR730674A true FR730674A (en) 1932-08-19

Family

ID=9115409

Family Applications (1)

Application Number Title Priority Date Filing Date
FR730674D Expired FR730674A (en) 1932-01-29 1932-01-29 Concentric disc device for educational use

Country Status (1)

Country Link
FR (1) FR730674A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239951A (en) * 1962-05-16 1966-03-15 Benson Hyman Educational device or toy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239951A (en) * 1962-05-16 1966-03-15 Benson Hyman Educational device or toy

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