FR48854E - Règles à calcul - Google Patents

Règles à calcul

Info

Publication number
FR48854E
FR48854E FR48854DA FR48854E FR 48854 E FR48854 E FR 48854E FR 48854D A FR48854D A FR 48854DA FR 48854 E FR48854 E FR 48854E
Authority
FR
France
Prior art keywords
slide rules
rules
slide
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
Loy George-Sylvin
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 FR48854E publication Critical patent/FR48854E/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
    • G06G1/10—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)
FR48854D 1937-03-18 1937-03-18 Règles à calcul Expired FR48854E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR48854T 1937-03-18

Publications (1)

Publication Number Publication Date
FR48854E true FR48854E (fr) 1938-09-19

Family

ID=8684116

Family Applications (1)

Application Number Title Priority Date Filing Date
FR48854D Expired FR48854E (fr) 1937-03-18 1937-03-18 Règles à calcul

Country Status (1)

Country Link
FR (1) FR48854E (fr)

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