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IPC Subgroup
G10D 7/04

with Helmholtz resonators, e.g. ocarinas

Introduced: September 1968

Last revised: January 2020

Full Title

General design of wind musical instruments > of the type wherein an air current is directed against a ramp edge > with Helmholtz resonators, e.g. ocarinas

Classification Context

Section:
PHYSICS
Class:
MUSICAL INSTRUMENTS; ACOUSTICS
Subclass:
STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR