FR726061A - Indicateur d'orientation - Google Patents

Indicateur d'orientation

Info

Publication number
FR726061A
FR726061A FR726061DA FR726061A FR 726061 A FR726061 A FR 726061A FR 726061D A FR726061D A FR 726061DA FR 726061 A FR726061 A FR 726061A
Authority
FR
France
Prior art keywords
orientation indicator
indicator
orientation
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
Jacques Roux
Michel Sepulchre
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 FR726061A publication Critical patent/FR726061A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/02—Magnetic compasses
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
    • G01C17/20—Observing the compass card or needle
    • G01C17/24—Illumination

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR726061D 1931-09-29 1931-11-09 Indicateur d'orientation Expired FR726061A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE726061X 1931-09-29

Publications (1)

Publication Number Publication Date
FR726061A true FR726061A (fr) 1932-05-23

Family

ID=3879015

Family Applications (1)

Application Number Title Priority Date Filing Date
FR726061D Expired FR726061A (fr) 1931-09-29 1931-11-09 Indicateur d'orientation

Country Status (1)

Country Link
FR (1) FR726061A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803068A (en) * 1956-03-08 1957-08-20 Russell I Mason Swimmer's underwater compass
US2935792A (en) * 1957-09-23 1960-05-10 Garth B Huffaker Football position aligner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803068A (en) * 1956-03-08 1957-08-20 Russell I Mason Swimmer's underwater compass
US2935792A (en) * 1957-09-23 1960-05-10 Garth B Huffaker Football position aligner

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