IPC Subgroup
H01F 7/04 Means for releasing the attractive force
Introduced: September 1968
Last revised: January 2006
Full Title
Magnets > Permanent magnets > Means for releasing the attractive force
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES