FR870687A - Instrument de mesure des angles avec micromètre optique permettant la lecture en deux points différents d'une graduation circulaire
- Google Patents
Instrument de mesure des angles avec micromètre optique permettant la lecture en deux points différents d'une graduation circulaire
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Askania Werke AG
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Askania Werke AG
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G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
G01C1/00—Measuring angles
G01C1/02—Theodolites
G—PHYSICS
G01—MEASURING; TESTING
G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
G01C1/00—Measuring angles
G01C1/02—Theodolites
G01C1/06—Arrangements for reading scales
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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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FR870687D1940-03-261941-03-07Instrument de mesure des angles avec micromètre optique permettant la lecture en deux points différents d'une graduation circulaire
ExpiredFR870687A
(fr)
Combinaison, pour instruments de mesure, de deux index à monvements indépendants propres à fournir des indications précises sur une graduation en spirale