DIFF Subgroup
G10K 11/04 Acoustic filters
Introduced: September 1968
Full Title
Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general > Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators > Acoustic filters
No child classifications to compare. This is a leaf node in both IPC and CPC.