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.)
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Sperry Gyroscope Co Ltd
Sperry Gyroscope Co Inc
Original Assignee
Sperry Gyroscope Co Ltd
Sperry Gyroscope Co Inc
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Publication date
Application filed by Sperry Gyroscope Co Ltd, Sperry Gyroscope Co IncfiledCriticalSperry Gyroscope Co Ltd
Application grantedgrantedCritical
Publication of FR841237ApublicationCriticalpatent/FR841237A/fr
G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
G01C19/02—Rotary gyroscopes
G01C19/34—Rotary gyroscopes for indicating a direction in the horizontal plane, e.g. directional gyroscopes
G01C19/38—Rotary gyroscopes for indicating a direction in the horizontal plane, e.g. directional gyroscopes with north-seeking action by other than magnetic means, e.g. gyrocompasses using earth's rotation
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Environmental & Geological Engineering
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Geology
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Physics & Mathematics
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Engineering & Computer Science
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General Physics & Mathematics
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Radar, Positioning & Navigation
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Remote Sensing
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FR841237D1937-07-311938-07-27Perfectionnements aux dispositifs indicateurs d'écart de route
ExpiredFR841237A
(fr)