FR1067292A - Calculus helicoid - Google Patents

Calculus helicoid

Info

Publication number
FR1067292A
FR1067292A FR1067292DA FR1067292A FR 1067292 A FR1067292 A FR 1067292A FR 1067292D A FR1067292D A FR 1067292DA FR 1067292 A FR1067292 A FR 1067292A
Authority
FR
France
Prior art keywords
helicoid
calculus
calculus helicoid
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
Roger-Charles Jacquot
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 FR1067292A publication Critical patent/FR1067292A/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
FR1067292D 1952-11-29 1952-11-29 Calculus helicoid Expired FR1067292A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1067292T 1952-11-29

Publications (1)

Publication Number Publication Date
FR1067292A true FR1067292A (en) 1954-06-14

Family

ID=9603169

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1067292D Expired FR1067292A (en) 1952-11-29 1952-11-29 Calculus helicoid

Country Status (1)

Country Link
FR (1) FR1067292A (en)

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