DIFF Subgroup
H04M 1/04 Supports for telephone transmitters or receivers
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Substation equipment, e.g. for use by subscribers > Constructional features of telephone sets > Supports for telephone transmitters or receivers
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 > Supports for telephone transmitters or receivers
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
Child Classifications
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