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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H04L 13/16

of transmitters, e.g. code-bars, code-discs

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Details of the apparatus or circuits covered by groups or > of transmitters, e.g. code-bars, code-discs

CPC:

Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00 > of transmitters, e.g. code-bars, code-discs

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