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FR453937A - Machines à additionner - Google Patents

Machines à additionner

Info

Publication number
FR453937A
FR453937A FR453937DA FR453937A FR 453937 A FR453937 A FR 453937A FR 453937D A FR453937D A FR 453937DA FR 453937 A FR453937 A FR 453937A
Authority
FR
France
Prior art keywords
adding machines
machines
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)
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.)
AUSTIN ADDING MACHINE CORP
Original Assignee
AUSTIN ADDING MACHINE CORP
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 AUSTIN ADDING MACHINE CORP filed Critical AUSTIN ADDING MACHINE CORP
Application granted granted Critical
Publication of FR453937A publication Critical patent/FR453937A/fr
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)
FR453937D 1913-02-03 1913-02-03 Machines à additionner Expired FR453937A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR453937T 1913-02-03

Publications (1)

Publication Number Publication Date
FR453937A true FR453937A (fr) 1913-06-21

Family

ID=1493997

Family Applications (1)

Application Number Title Priority Date Filing Date
FR453937D Expired FR453937A (fr) 1913-02-03 1913-02-03 Machines à additionner

Country Status (1)

Country Link
FR (1) FR453937A (fr)

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