FR713386A - Improvements to abacuses intended for teaching - Google Patents

Improvements to abacuses intended for teaching

Info

Publication number
FR713386A
FR713386A FR713386DA FR713386A FR 713386 A FR713386 A FR 713386A FR 713386D A FR713386D A FR 713386DA FR 713386 A FR713386 A FR 713386A
Authority
FR
France
Prior art keywords
abacuses
teaching
intended
abacuses intended
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
Jules Gilbert
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 FR713386A publication Critical patent/FR713386A/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
    • 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)
FR713386D 1931-03-17 1931-03-17 Improvements to abacuses intended for teaching Expired FR713386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR713386T 1931-03-17

Publications (1)

Publication Number Publication Date
FR713386A true FR713386A (en) 1931-10-27

Family

ID=9083237

Family Applications (1)

Application Number Title Priority Date Filing Date
FR713386D Expired FR713386A (en) 1931-03-17 1931-03-17 Improvements to abacuses intended for teaching

Country Status (1)

Country Link
FR (1) FR713386A (en)

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