Hygienic or sanitary devices on telephone equipment (for mouthpieces or earpieces H04R1/12)

Introduced: July 1974

Title

Titles differ between systems:

IPC: Hygienic or sanitary devices on telephone equipment

CPC: Hygienic or sanitary devices on telephone equipment (for mouthpieces or earpieces H04R1/12)

Full Title

Full titles differ between systems:

IPC:

Substation equipment, e.g. for use by subscribers > Constructional features of telephone sets > Hygienic or sanitary devices on telephone equipment

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 > Hygienic or sanitary devices on telephone equipment (for mouthpieces or earpieces H04R1/12)

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