CPC Subgroup
G01B 17/08 for measuring roughness or irregularity of surfaces
Full Title
Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations > for measuring roughness or irregularity of surfaces
G01B 17/08 Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations > for measuring roughness or irregularity of surfaces