IPC Subgroup
H01H 35/42 Switches operated by change of humidity
Introduced: September 1968
Last revised: January 2006
Full Title
Switches operated by change of a physical condition > Switches operated by change of humidity
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
Related Keywords
electric switches responsive to HUMIDITY