IPC Subgroup
G01N 21/898 Irregularities in textured or patterned surfaces, e.g. textiles, wood
Introduced: January 2000
Last revised: January 2006
Full Title
Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light > Systems specially adapted for particular applications > Investigating the presence of flaws, defects or contamination > in moving material, e.g. paper, textiles > characterised by the flaw, defect or object feature examined > Irregularities in textured or patterned surfaces, e.g. textiles, wood
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES