FR321251A - - Google Patents

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Publication number
FR321251A
FR321251A FR321251DA FR321251A FR 321251 A FR321251 A FR 321251A FR 321251D A FR321251D A FR 321251DA FR 321251 A FR321251 A FR 321251A
Authority
FR
France
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.)
Active
Application number
Other languages
French (fr)
Publication of FR321251A publication Critical patent/FR321251A/fr
Active 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
    • G09B19/00—Teaching not covered by other main groups of this subclass
    • G09B19/02—Counting; Calculating

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  • Business, Economics & Management (AREA)
  • Engineering & Computer Science (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
FR321251D Active FR321251A (en)

Publications (1)

Publication Number Publication Date
FR321251A true FR321251A (en)

Family

ID=1371694

Family Applications (1)

Application Number Title Priority Date Filing Date
FR321251D Active FR321251A (en)

Country Status (1)

Country Link
FR (1) FR321251A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514636A (en) * 1948-12-09 1950-07-11 Raymond A Glaze Visual arithmetic teaching apparatus
US2866278A (en) * 1956-11-28 1958-12-30 Snarr Grover Webb Arithmetic teaching aid
US3094792A (en) * 1962-03-28 1963-06-25 Harold W Morgan Educational toy
US3229388A (en) * 1963-07-31 1966-01-18 Frank M Smith Educational device
US3851409A (en) * 1972-07-12 1974-12-03 T Teahan Mathematical educational device
FR2400742A1 (en) * 1977-08-16 1979-03-16 Walker Hazel Mathematical concept illustration device - has base part having surface divided into hundred equal unit squares in ten-to-ten format
US4518359A (en) * 1983-12-30 1985-05-21 Yao Psong Wang Multi-purpose instructing block

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514636A (en) * 1948-12-09 1950-07-11 Raymond A Glaze Visual arithmetic teaching apparatus
US2866278A (en) * 1956-11-28 1958-12-30 Snarr Grover Webb Arithmetic teaching aid
US3094792A (en) * 1962-03-28 1963-06-25 Harold W Morgan Educational toy
US3229388A (en) * 1963-07-31 1966-01-18 Frank M Smith Educational device
US3851409A (en) * 1972-07-12 1974-12-03 T Teahan Mathematical educational device
FR2400742A1 (en) * 1977-08-16 1979-03-16 Walker Hazel Mathematical concept illustration device - has base part having surface divided into hundred equal unit squares in ten-to-ten format
US4518359A (en) * 1983-12-30 1985-05-21 Yao Psong Wang Multi-purpose instructing block

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