DIFF Main Group
H03C 7/00 Modulating electromagnetic waves (devices or arrangements for the modulation of light G02F1/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Modulating electromagnetic waves
CPC: Modulating electromagnetic waves (devices or arrangements for the modulation of light G02F1/00)
Full Title
Full titles differ between systems:
IPC:
Modulating electromagnetic waves
CPC:
Modulating electromagnetic waves (devices or arrangements for the modulation of light G02F1/00)
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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- H03C 7/02 in transmission lines, waveguides, cavity resonators or radiation fields of antennas +2 CPC IPC+CPC Available in IPC and CPC