FR412352A - Machine à calculer - Google Patents

Machine à calculer

Info

Publication number
FR412352A
FR412352A FR412352DA FR412352A FR 412352 A FR412352 A FR 412352A FR 412352D A FR412352D A FR 412352DA FR 412352 A FR412352 A FR 412352A
Authority
FR
France
Prior art keywords
calculator
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
Dorr 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.)
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 FR412352A publication Critical patent/FR412352A/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)
FR412352D 1910-02-05 1910-02-05 Machine à calculer Expired FR412352A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR412352T 1910-02-05

Publications (1)

Publication Number Publication Date
FR412352A true FR412352A (fr) 1910-07-11

Family

ID=1456222

Family Applications (1)

Application Number Title Priority Date Filing Date
FR412352D Expired FR412352A (fr) 1910-02-05 1910-02-05 Machine à calculer

Country Status (1)

Country Link
FR (1) FR412352A (fr)

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