IPC Subgroup
G01C 9/36 of the spherical type, i.e. for indicating the level in all directions
Introduced: September 1968
Last revised: January 2006
Full Title
Measuring inclination, e.g. by clinometers, by levels > by using liquids > in closed containers partially filled with liquid so as to leave a gas bubble > of the spherical type, i.e. for indicating the level in all directions
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY