FR664714A - Bouliers compteurs - Google Patents

Bouliers compteurs

Info

Publication number
FR664714A
FR664714A FR664714DA FR664714A FR 664714 A FR664714 A FR 664714A FR 664714D A FR664714D A FR 664714DA FR 664714 A FR664714 A FR 664714A
Authority
FR
France
Prior art keywords
abacuses
counter
counter abacuses
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
English (en)
Inventor
Hilarion Platz
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 FR664714A publication Critical patent/FR664714A/fr
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B19/00Teaching not covered by other main groups of this subclass
    • G09B19/02Counting; 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)
FR664714D 1928-10-15 1928-10-15 Bouliers compteurs Expired FR664714A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR664714T 1928-10-15

Publications (1)

Publication Number Publication Date
FR664714A true FR664714A (fr) 1929-09-06

Family

ID=9012833

Family Applications (1)

Application Number Title Priority Date Filing Date
FR664714D Expired FR664714A (fr) 1928-10-15 1928-10-15 Bouliers compteurs

Country Status (1)

Country Link
FR (1) FR664714A (fr)

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