IPC Main Group
H04R 15/00 Magnetostrictive transducers
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
Related Keywords
transducers using MAGNETOSTRICTION
1 direct subcode
Child Classifications
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- H04R 15/02 Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency