FR457947A - Appareil à calcul - Google Patents

Appareil à calcul

Info

Publication number
FR457947A
FR457947A FR457947DA FR457947A FR 457947 A FR457947 A FR 457947A FR 457947D A FR457947D A FR 457947DA FR 457947 A FR457947 A FR 457947A
Authority
FR
France
Prior art keywords
calculating device
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
Jean-Louis Barre
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.)
JEAN LOUIS BARRE
Original Assignee
JEAN LOUIS BARRE
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 JEAN LOUIS BARRE filed Critical JEAN LOUIS BARRE
Application granted granted Critical
Publication of FR457947A publication Critical patent/FR457947A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G1/00—Hand-manipulated computing devices
    • G06G1/02—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales
    • G06G1/10—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by the graduation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
FR457947D 1913-05-09 1913-05-09 Appareil à calcul Expired FR457947A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR457947T 1913-05-09

Publications (1)

Publication Number Publication Date
FR457947A true FR457947A (fr) 1913-09-29

Family

ID=1497590

Family Applications (1)

Application Number Title Priority Date Filing Date
FR457947D Expired FR457947A (fr) 1913-05-09 1913-05-09 Appareil à calcul

Country Status (1)

Country Link
FR (1) FR457947A (fr)

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