Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H04M 5/16

with means for reducing interference; with means for reducing effects due to line faults

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Manual exchanges > with means for reducing interference; with means for reducing effects due to line faults

CPC:

Manual exchanges (substation equipment in general H04M1/00) > with means for reducing interference; with means for reducing effects due to line faults

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