DIFF Subgroup
H04Q 11/02 for frequency-division multiplexing
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Selecting arrangements for multiplex systems > for frequency-division multiplexing
CPC:
Selecting arrangements for multiplex systems (multiplex systems H04J) > for frequency-division multiplexing
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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