Electrostatic transducers

Introduced: September 1968

Of 5 combined children, 4 exist in both systems.

1 codes are CPC-only extensions.

3 shared codes have differing titles between IPC and CPC.

Child Classifications

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H04R 19/005 CPC only CPC only
H04R 19/01 characterised by the use of electrets since 1980 +2 CPC IPC+CPC Available in IPC and CPC
H04R 19/02 Loudspeakers (H04R19/01 takes precedence) IPC+CPC Available in IPC and CPC
H04R 19/04 Microphones (H04R19/01 takes precedence) IPC+CPC Available in IPC and CPC
H04R 19/06 Gramophone pick-ups using a stylus; Recorders using a stylus (H04R19/01 takes precedence) IPC+CPC Available in IPC and CPC