DIFF Subgroup
H03J 3/18 by discharge tube or semiconductor device simulating variable reactance
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Continuous tuning > Details > Tuning without displacement of reactive element, e.g. by varying permeability > by discharge tube or semiconductor device simulating variable reactance
CPC:
Continuous tuning (H03J7/00, H03J9/00 take precedence; combination of continuous and discontinuous tuning other than for bandspreading H03J5/00) > Details > Tuning without displacement of reactive element, e.g. by varying permeability > by discharge tube or semiconductor device simulating variable reactance
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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