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PCE
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DIFF Subgroup
G08C 19/14

using combination of fixed frequencies

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Electric signal transmission systems > in which the signal transmitted is frequency or phase of AC > using combination of fixed frequencies

CPC:

Electric signal transmission systems (G08C17/00 takes precedence) > in which the signal transmitted is frequency or phase of AC > using combination of fixed frequencies

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