Combinations with auxiliary equipment, e.g. with clocks or memoranda pads

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Substation equipment, e.g. for use by subscribers > Constructional features of telephone sets > Combinations with auxiliary equipment, e.g. with clocks or memoranda pads

CPC:

Substation equipment, e.g. for use by subscribers (subscriber services or facilities provided at exchanges H04M3/00; prepayment telephone coin boxes H04M17/00; current supply arrangements H04M19/08) > Constructional features of telephone sets > Combinations with auxiliary equipment, e.g. with clocks or memoranda pads

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

IPC defines codes here since 2000.

Child Classifications

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H04M 1/215 by non-intrusive coupling means, e.g. acoustic couplers since 2000 +1 CPC IPC+CPC Available in IPC and CPC