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H Pervilhac & Cie Soc
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H Pervilhac & Cie Soc
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Application filed by H Pervilhac & Cie SocfiledCriticalH Pervilhac & Cie Soc
Application grantedgrantedCritical
Publication of FR446617ApublicationCriticalpatent/FR446617A/fr
G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
G01C3/00—Measuring distances in line of sight; Optical rangefinders
G01C3/22—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length at, near, or formed by the object
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Physics & Mathematics
(AREA)
Electromagnetism
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Engineering & Computer Science
(AREA)
General Physics & Mathematics
(AREA)
Radar, Positioning & Navigation
(AREA)
Remote Sensing
(AREA)
FR446617D1911-10-061911-10-06Appareil pour la mesure des distances
ExpiredFR446617A
(fr)