FR58228E - Calculator - Google Patents

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Publication number
FR58228E
FR58228E FR58228DA FR58228E FR 58228 E FR58228 E FR 58228E FR 58228D A FR58228D A FR 58228DA FR 58228 E FR58228 E FR 58228E
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
French (fr)
Inventor
Pierre-Jules-Louis Jullien
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 FR58228E publication Critical patent/FR58228E/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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)
FR58228D 1948-04-20 1948-04-20 Calculator Expired FR58228E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR58228T 1948-04-20

Publications (1)

Publication Number Publication Date
FR58228E true FR58228E (en) 1953-09-29

Family

ID=8692149

Family Applications (1)

Application Number Title Priority Date Filing Date
FR58228D Expired FR58228E (en) 1948-04-20 1948-04-20 Calculator

Country Status (1)

Country Link
FR (1) FR58228E (en)

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