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PCE
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DIFF Subgroup
H04B 3/493

Testing echo effects or singing

Introduced: January 2015

Full Title

Full titles differ between systems:

IPC:

Line transmission systems > Details > Monitoring; Testing > Testing echo effects or singing

CPC:

Line transmission systems (combined with near-field transmission systems H04B5/00) > Details > Monitoring; Testing > Testing echo effects or singing

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