FR968377A - Direct reading logarithmic calculator - Google Patents

Direct reading logarithmic calculator

Info

Publication number
FR968377A
FR968377A FR968377DA FR968377A FR 968377 A FR968377 A FR 968377A FR 968377D A FR968377D A FR 968377DA FR 968377 A FR968377 A FR 968377A
Authority
FR
France
Prior art keywords
direct reading
logarithmic calculator
logarithmic
calculator
reading
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
Paul-Marie-Agrico Conte-Devolx
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 FR968377A publication Critical patent/FR968377A/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)
FR968377D 1948-06-26 1948-06-26 Direct reading logarithmic calculator Expired FR968377A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR968377T 1948-06-26

Publications (1)

Publication Number Publication Date
FR968377A true FR968377A (en) 1950-11-24

Family

ID=9501282

Family Applications (1)

Application Number Title Priority Date Filing Date
FR968377D Expired FR968377A (en) 1948-06-26 1948-06-26 Direct reading logarithmic calculator

Country Status (1)

Country Link
FR (1) FR968377A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309017A (en) * 1965-06-04 1967-03-14 Melvin A Koskela Educational calculating device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309017A (en) * 1965-06-04 1967-03-14 Melvin A Koskela Educational calculating device

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