IPC Subgroup
G10K 9/18 Details, e.g. bulbs, pumps, pistons, switches or casings
Introduced: September 1968
Last revised: January 2006
Full Title
Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers > Details, e.g. bulbs, pumps, pistons, switches or casings
Classification Context
- Section:
- PHYSICS
- Class:
- MUSICAL INSTRUMENTS; ACOUSTICS
- Subclass:
- SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
2 direct subcodes
Child Classifications
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