IPC Subgroup
G01B 17/08 for measuring roughness or irregularity of surfaces
Introduced: January 1995
Last revised: January 2006
Full Title
Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations > for measuring roughness or irregularity of surfaces
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS