FR2414852A7 - Dispositif a fiches coulissantes pour la lecture de la table de multiplication et le calcul des equivalences - Google Patents

Dispositif a fiches coulissantes pour la lecture de la table de multiplication et le calcul des equivalences

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Publication number
FR2414852A7
FR2414852A7 FR7810836A FR7810836A FR2414852A7 FR 2414852 A7 FR2414852 A7 FR 2414852A7 FR 7810836 A FR7810836 A FR 7810836A FR 7810836 A FR7810836 A FR 7810836A FR 2414852 A7 FR2414852 A7 FR 2414852A7
Authority
FR
France
Prior art keywords
parts
wallet
equivalents
case
arithmetical
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
FR7810836A
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English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Application granted granted Critical
Publication of FR2414852A7 publication Critical patent/FR2414852A7/fr
Expired legal-status Critical Current

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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
    • G06G1/04—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction
    • G06G1/06—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction with rectilinear scales, e.g. slide rule
    • G06G1/065—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction with rectilinear scales, e.g. slide rule construction of the cursor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

Dispositif pour le calcul des mesures équivalentes et/ou pour la lecture de table'de multiplication. Selon l'invention, le dispositif est constitué par une pochette ou étui plat comportant au moins une poche dont une paroi est découpée pour former des fenêtres, des zones transparentes alignées et uniformément espacées entre elles; une fiche coulissante longitudinalement dans chaque poche porte des indications numériques, graphiques relatives à la table de multiplication, à une échelle des équivalences, ces indications étant alignéés et uniformément écartées de façon similaire aux fenêtres de l'étui plat pour leur lecture à travers les fenêtres. Lecture de la table de multiplication et calcul des équivalences entre multiples et sous-multiples d'unités appartenant à n'importe quel système.
FR7810836A 1978-01-11 1978-04-12 Dispositif a fiches coulissantes pour la lecture de la table de multiplication et le calcul des equivalences Expired FR2414852A7 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2045378U IT7820453V0 (it) 1978-01-11 1978-01-11 Dispositivo a schede scorrevoli per la lettura della tavola pitagorica e il calcolo delle equivalenze.

Publications (1)

Publication Number Publication Date
FR2414852A7 true FR2414852A7 (fr) 1979-08-10

Family

ID=11167163

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7810836A Expired FR2414852A7 (fr) 1978-01-11 1978-04-12 Dispositif a fiches coulissantes pour la lecture de la table de multiplication et le calcul des equivalences

Country Status (2)

Country Link
FR (1) FR2414852A7 (fr)
IT (1) IT7820453V0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795547A1 (fr) * 1999-06-28 2000-12-29 Rene Conin Dispositif d'acquisition d'une valeur d'autonomie d'oxygene

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795547A1 (fr) * 1999-06-28 2000-12-29 Rene Conin Dispositif d'acquisition d'une valeur d'autonomie d'oxygene
EP1065432A1 (fr) * 1999-06-28 2001-01-03 René Conin Dispositif portable d'acquisition d'une valeur d'autonomie d'oxygène.

Also Published As

Publication number Publication date
IT7820453V0 (it) 1978-01-11

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