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PCE
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DIFF Subgroup
H03K 23/78

using opto-electronic devices

Introduced: January 1985

Full Title

Full titles differ between systems:

IPC:

Pulse counters comprising counting chains; Frequency dividers comprising counting chains > using opto-electronic devices

CPC:

Pulse counters comprising counting chains; Frequency dividers comprising counting chains (H03K29/00 takes precedence) > using opto-electronic devices

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