FR608446A - Règle à calcul pour radiotélégraphiste - Google Patents

Règle à calcul pour radiotélégraphiste

Info

Publication number
FR608446A
FR608446A FR608446DA FR608446A FR 608446 A FR608446 A FR 608446A FR 608446D A FR608446D A FR 608446DA FR 608446 A FR608446 A FR 608446A
Authority
FR
France
Prior art keywords
radiotelegraph
operator
slide rule
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
Emile-Marie-Francois Fromy
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 FR608446A publication Critical patent/FR608446A/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)
FR608446D 1925-12-29 1925-12-29 Règle à calcul pour radiotélégraphiste Expired FR608446A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR608446T 1925-12-29

Publications (1)

Publication Number Publication Date
FR608446A true FR608446A (fr) 1926-07-27

Family

ID=8976062

Family Applications (1)

Application Number Title Priority Date Filing Date
FR608446D Expired FR608446A (fr) 1925-12-29 1925-12-29 Règle à calcul pour radiotélégraphiste

Country Status (1)

Country Link
FR (1) FR608446A (fr)

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