FR841531A - Perfectionnements aux abaques - Google Patents

Perfectionnements aux abaques

Info

Publication number
FR841531A
FR841531A FR841531DA FR841531A FR 841531 A FR841531 A FR 841531A FR 841531D A FR841531D A FR 841531DA FR 841531 A FR841531 A FR 841531A
Authority
FR
France
Prior art keywords
abacuses
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
Erik Jakob Osterberg
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 FR841531A publication Critical patent/FR841531A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G1/00—Hand manipulated computing devices
    • G06G1/14—Hand manipulated computing devices in which a straight or curved line has to be drawn from given points on one or more input scales to one or more points on a result scale

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
FR841531D 1937-08-02 1938-08-01 Perfectionnements aux abaques Expired FR841531A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE841531X 1937-08-02

Publications (1)

Publication Number Publication Date
FR841531A true FR841531A (fr) 1939-05-22

Family

ID=20358370

Family Applications (1)

Application Number Title Priority Date Filing Date
FR841531D Expired FR841531A (fr) 1937-08-02 1938-08-01 Perfectionnements aux abaques

Country Status (1)

Country Link
FR (1) FR841531A (fr)

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