FR969512A - Cylindre à calculs - Google Patents

Cylindre à calculs

Info

Publication number
FR969512A
FR969512A FR969512DA FR969512A FR 969512 A FR969512 A FR 969512A FR 969512D A FR969512D A FR 969512DA FR 969512 A FR969512 A FR 969512A
Authority
FR
France
Prior art keywords
calculation cylinder
calculation
cylinder
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-Etienne-Abraham Defrance
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 FR969512A publication Critical patent/FR969512A/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
    • G06G1/04—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction
    • G06G1/08—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction with circular or helical scales
    • G06G1/085—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction with circular or helical scales borne by a cylinder

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
FR969512D 1948-07-24 1948-07-24 Cylindre à calculs Expired FR969512A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR969512T 1948-07-24

Publications (1)

Publication Number Publication Date
FR969512A true FR969512A (fr) 1950-12-21

Family

ID=9501992

Family Applications (1)

Application Number Title Priority Date Filing Date
FR969512D Expired FR969512A (fr) 1948-07-24 1948-07-24 Cylindre à calculs

Country Status (1)

Country Link
FR (1) FR969512A (fr)

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