BE418682A - - Google Patents

Info

Publication number
BE418682A
BE418682A BE418682DA BE418682A BE 418682 A BE418682 A BE 418682A BE 418682D A BE418682D A BE 418682DA BE 418682 A BE418682 A BE 418682A
Authority
BE
Belgium
Prior art keywords
card
numbers
disc
figures
discs
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE418682A publication Critical patent/BE418682A/fr

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

Landscapes

  • 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)
  • Toys (AREA)
BE418682D BE418682A (show.php)

Publications (1)

Publication Number Publication Date
BE418682A true BE418682A (show.php)

Family

ID=81139

Family Applications (1)

Application Number Title Priority Date Filing Date
BE418682D BE418682A (show.php)

Country Status (1)

Country Link
BE (1) BE418682A (show.php)

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