DIFF Subgroup
H04Q 3/545 using a stored program
Introduced: January 1985
Full Title
Full titles differ between systems:
IPC:
Selecting arrangements > Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker > in which the logic circuitry controlling the exchange is centralised > using a stored program
CPC:
Selecting arrangements (H04Q5/00 - H04Q11/00 take precedence) > Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker > in which the logic circuitry controlling the exchange is centralised > using a stored program
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
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