FR60180E - Règle à calculs perfectionnée - Google Patents

Règle à calculs perfectionnée

Info

Publication number
FR60180E
FR60180E FR60180DA FR60180E FR 60180 E FR60180 E FR 60180E FR 60180D A FR60180D A FR 60180DA FR 60180 E FR60180 E FR 60180E
Authority
FR
France
Prior art keywords
slide rule
advanced slide
advanced
rule
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
Frederic Grelaud
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 FR60180E publication Critical patent/FR60180E/fr
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)
FR60180D 1950-04-11 1950-04-11 Règle à calculs perfectionnée Expired FR60180E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR60180T 1950-04-11

Publications (1)

Publication Number Publication Date
FR60180E true FR60180E (fr) 1954-09-23

Family

ID=8693923

Family Applications (1)

Application Number Title Priority Date Filing Date
FR60180D Expired FR60180E (fr) 1950-04-11 1950-04-11 Règle à calculs perfectionnée

Country Status (1)

Country Link
FR (1) FR60180E (fr)

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