Structural association of microphone with electric circuitry therefor (in electric hearing aids H04R25/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Structural association of microphone with electric circuitry therefor

CPC: Structural association of microphone with electric circuitry therefor (in electric hearing aids H04R25/00)

Full Title

Full titles differ between systems:

IPC:

Details of transducers > Casings; Cabinets; Mountings therein > Structural association of microphone with electric circuitry therefor

CPC:

Details of transducers, > Casings; Cabinets Mountings therein (H04R1/28 takes precedence ) > Structural association of microphone with electric circuitry therefor (in electric hearing aids H04R25/00)

No child classifications to compare. This is a leaf node in both IPC and CPC.