DIFF Subgroup
H01P 5/19 of the junction type
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Coupling devices of the waveguide type > Coupling devices having more than two ports > Conjugate devices, i.e. devices having at least one port decoupled from one other port > of the junction type
CPC:
Coupling devices of the waveguide type > Coupling devices having more than two ports (H01P5/04 takes precedence) > Conjugate devices, i.e. devices having at least one port decoupled from one other port > of the junction type
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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