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MARCEL LEGRAS
RENE PILLIET
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MARCEL LEGRAS
RENE PILLIET
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Application filed by MARCEL LEGRAS, RENE PILLIETfiledCriticalMARCEL LEGRAS
Application grantedgrantedCritical
Publication of FR409932ApublicationCriticalpatent/FR409932A/fr
G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
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Engineering & Computer Science
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Computer Networks & Wireless Communication
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Physics & Mathematics
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General Physics & Mathematics
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Radar, Positioning & Navigation
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Remote Sensing
(AREA)
FR409932D1909-12-041909-12-04Mode d'application des ondes hertziennes à la mesure des distances
ExpiredFR409932A
(fr)
Appareil destiné à déterminer la direction des ondes sonores et plus généralement de toutes ondes susceptibles d'etre transformées en ondes sonores d'intensité proportionnelle
Appareil destiné à déterminer la direction des ondes sonores et plus généralement de toutes ondes susceptibles d'etre transformées en ondes sonores d'intensité proportionnelle
Instrument de mesure pour déterminer des efforts ou de faibles changements de dimensions d'après la déformation élastique de cavités remplies de liquide