FR852520A - New slide rule for air navigation - Google Patents

New slide rule for air navigation

Info

Publication number
FR852520A
FR852520A FR852520DA FR852520A FR 852520 A FR852520 A FR 852520A FR 852520D A FR852520D A FR 852520DA FR 852520 A FR852520 A FR 852520A
Authority
FR
France
Prior art keywords
air navigation
slide rule
new slide
new
rule
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
Jean Hennequin
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 FR852520A publication Critical patent/FR852520A/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
    • G06G1/10—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by the graduation
    • G06G1/12—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by the graduation logarithmic graduations, e.g. for multiplication

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
FR852520D 1938-10-11 1938-10-11 New slide rule for air navigation Expired FR852520A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR852520T 1938-10-11

Publications (1)

Publication Number Publication Date
FR852520A true FR852520A (en) 1940-02-26

Family

ID=9326665

Family Applications (1)

Application Number Title Priority Date Filing Date
FR852520D Expired FR852520A (en) 1938-10-11 1938-10-11 New slide rule for air navigation

Country Status (1)

Country Link
FR (1) FR852520A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5771598A (en) * 1996-03-25 1998-06-30 Lassberg; Hilmar J. Measurement device with British/metric scales

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5771598A (en) * 1996-03-25 1998-06-30 Lassberg; Hilmar J. Measurement device with British/metric scales

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