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PCE
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DIFF Subgroup
H04Q 3/70

Identification of class of calling subscriber

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Selecting arrangements > Identification of class of calling subscriber

CPC:

Selecting arrangements (H04Q5/00 - H04Q11/00 take precedence) > Identification of class of calling subscriber

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