DIFF Subgroup
H03J 3/28 of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Continuous tuning > of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
CPC:
Continuous tuning (H03J7/00, H03J9/00 take precedence; combination of continuous and discontinuous tuning other than for bandspreading H03J5/00) > of more than one resonant circuit simultaneously, the tuning frequencies of the circuits having a substantially constant difference throughout the tuning range
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
Child Classifications
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