DIFF Subgroup
H03D 7/14 Balanced arrangements
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Transference of modulation from one carrier to another, e.g. frequency-changing > Balanced arrangements
CPC:
Transference of modulation from one carrier to another, e.g. frequency-changing (H03D9/00, H03D11/00 take precedence; dielectric amplifiers, magnetic amplifiers, parametric amplifiers used as a frequency-changers H03F) > Balanced arrangements
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
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