DIFF Subgroup
H04R 7/26 Damping by means acting directly on free portion of diaphragm or cone (air damping H04R1/28)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Damping by means acting directly on free portion of diaphragm or cone
CPC: Damping by means acting directly on free portion of diaphragm or cone (air damping H04R1/28)
Full Title
Full titles differ between systems:
IPC:
Diaphragms for electromechanical transducers; Cones > Damping by means acting directly on free portion of diaphragm or cone
CPC:
Diaphragms for electromechanical transducers (in general F16J3/00); Cones (for musical instruments G10 ) > Damping by means acting directly on free portion of diaphragm or cone (air damping H04R1/28)
No child classifications to compare. This is a leaf node in both IPC and CPC.