G PHYSICS
Load children
G01 MEASURING; TESTING
Load children
G01C MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
Load children
21/00 Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
Load children
G01C21/10 by using measurements of speed or acceleration
Load children Filter patents View as hierarchy
G01C21/12 executed aboard the object being navigated; Dead reckoning
Load children Filter patents View as hierarchy