FR551455A - Counting machine - Google Patents

Counting machine

Info

Publication number
FR551455A
FR551455A FR551455DA FR551455A FR 551455 A FR551455 A FR 551455A FR 551455D A FR551455D A FR 551455DA FR 551455 A FR551455 A FR 551455A
Authority
FR
France
Prior art keywords
counting machine
counting
machine
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
Ernst Kassner
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 FR551455A publication Critical patent/FR551455A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C7/00—Input mechanisms
    • G06C7/02—Keyboards
    • G06C7/08—Keyboards with one set of keys for all denominations, e.g. ten-key board

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
FR551455D 1921-04-20 1922-04-20 Counting machine Expired FR551455A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE551455X 1921-04-20

Publications (1)

Publication Number Publication Date
FR551455A true FR551455A (en) 1923-04-06

Family

ID=6563052

Family Applications (1)

Application Number Title Priority Date Filing Date
FR551455D Expired FR551455A (en) 1921-04-20 1922-04-20 Counting machine

Country Status (1)

Country Link
FR (1) FR551455A (en)

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