DIFF Subgroup
H03C 5/02 by means of transit-time tube
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal > by means of transit-time tube
CPC:
Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal (H03C7/00 takes precedence) > by means of transit-time tube
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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