FR460259A - Perfectionnements aux machines à calculer - Google Patents

Perfectionnements aux machines à calculer

Info

Publication number
FR460259A
FR460259A FR460259DA FR460259A FR 460259 A FR460259 A FR 460259A FR 460259D A FR460259D A FR 460259DA FR 460259 A FR460259 A FR 460259A
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
English (en)
Inventor
Dobr Eugene Felt
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.)
DOBR EUGENE FELT
Original Assignee
DOBR EUGENE FELT
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 DOBR EUGENE FELT filed Critical DOBR EUGENE FELT
Application granted granted Critical
Publication of FR460259A publication Critical patent/FR460259A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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)
FR460259D 1912-07-12 1913-07-11 Perfectionnements aux machines à calculer Expired FR460259A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US460259XA 1912-07-12 1912-07-12

Publications (1)

Publication Number Publication Date
FR460259A true FR460259A (fr) 1913-11-27

Family

ID=1499678

Family Applications (1)

Application Number Title Priority Date Filing Date
FR460259D Expired FR460259A (fr) 1912-07-12 1913-07-11 Perfectionnements aux machines à calculer

Country Status (1)

Country Link
FR (1) FR460259A (fr)

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