IPC Subgroup
G01N 27/84 by applying magnetic powder or magnetic ink
Introduced: September 1968
Last revised: January 2006
Full Title
Investigating or analysing materials by the use of electric, electrochemical, or magnetic means > by investigating magnetic variables > for investigating the presence of flaws > by investigating stray magnetic fields > by applying magnetic powder or magnetic ink
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES