FR651614A - Improvements in calculating machines - Google Patents

Improvements in calculating machines

Info

Publication number
FR651614A
FR651614A FR651614DA FR651614A FR 651614 A FR651614 A FR 651614A FR 651614D A FR651614D A FR 651614DA FR 651614 A FR651614 A FR 651614A
Authority
FR
France
Prior art keywords
calculating machines
machines
calculating
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
William Ball
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 FR651614A publication Critical patent/FR651614A/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
    • G06C7/06—Keyboards with one set of keys for each denomination

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
FR651614D 1926-12-31 1927-12-28 Improvements in calculating machines Expired FR651614A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB651614X 1926-12-31

Publications (1)

Publication Number Publication Date
FR651614A true FR651614A (en) 1929-02-21

Family

ID=10490166

Family Applications (1)

Application Number Title Priority Date Filing Date
FR651614D Expired FR651614A (en) 1926-12-31 1927-12-28 Improvements in calculating machines

Country Status (1)

Country Link
FR (1) FR651614A (en)

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