FR363101A - Appareil pour le calcul par fractions - Google Patents

Appareil pour le calcul par fractions

Info

Publication number
FR363101A
FR363101A FR363101DA FR363101A FR 363101 A FR363101 A FR 363101A FR 363101D A FR363101D A FR 363101DA FR 363101 A FR363101 A FR 363101A
Authority
FR
France
Prior art keywords
fractions
calculation
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
Wilhelm Koops
Hans Reimers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Application granted granted Critical
Publication of FR363101A publication Critical patent/FR363101A/fr
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)
FR363101D 1906-02-09 1906-02-09 Appareil pour le calcul par fractions Expired FR363101A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR363101T 1906-02-09

Publications (1)

Publication Number Publication Date
FR363101A true FR363101A (fr) 1906-07-21

Family

ID=1410544

Family Applications (1)

Application Number Title Priority Date Filing Date
FR363101D Expired FR363101A (fr) 1906-02-09 1906-02-09 Appareil pour le calcul par fractions

Country Status (1)

Country Link
FR (1) FR363101A (fr)

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