Patent classifications
G
PHYSICS
Load children
G01
MEASURING; TESTING
Load children
G01C
MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
Load children
3/00
Measuring distances in line of sight; Optical rangefinders
Load children Filter patents View analytics View as hierarchy
G01C3/10
using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument
Load children Filter patents View analytics View as hierarchy
G01C3/14
with binocular observation at a single point, e.g. stereoscopic type
Load children Filter patents View analytics View as hierarchy