FR850098A - Route plotting device, in particular for ships or airplanes - Google Patents

Route plotting device, in particular for ships or airplanes

Info

Publication number
FR850098A
FR850098A FR850098DA FR850098A FR 850098 A FR850098 A FR 850098A FR 850098D A FR850098D A FR 850098DA FR 850098 A FR850098 A FR 850098A
Authority
FR
France
Prior art keywords
airplanes
ships
plotting device
route plotting
route
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
French (fr)
Inventor
Antoine De Saint-Exupery
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 FR850098A publication Critical patent/FR850098A/en
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
    • G01C17/10—Comparing observed direction with north indication
    • G01C17/12—Comparing observed direction with north indication by sighting means, e.g. for surveyors' compasses
FR850098D 1938-08-18 1938-08-18 Route plotting device, in particular for ships or airplanes Expired FR850098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR850098T 1938-08-18

Publications (1)

Publication Number Publication Date
FR850098A true FR850098A (en) 1939-12-07

Family

ID=9315559

Family Applications (1)

Application Number Title Priority Date Filing Date
FR850098D Expired FR850098A (en) 1938-08-18 1938-08-18 Route plotting device, in particular for ships or airplanes

Country Status (1)

Country Link
FR (1) FR850098A (en)

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