DIFF Subgroup
H01P 3/123 with a complex or stepped cross-section, e.g. ridged or grooved waveguides (H01P3/14 takes precedence)
Introduced: January 1980
Title
Titles differ between systems:
IPC: with a complex or stepped cross-section, e.g. ridged or grooved waveguides
CPC: with a complex or stepped cross-section, e.g. ridged or grooved waveguides (H01P3/14 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Waveguides; Transmission lines of the waveguide type > Hollow waveguides > with a complex or stepped cross-section, e.g. ridged or grooved waveguides
CPC:
Waveguides; Transmission lines of the waveguide type > Hollow waveguides (H01P3/20 takes precedence) > with a complex or stepped cross-section, e.g. ridged or grooved waveguides (H01P3/14 takes precedence)
No child classifications to compare. This is a leaf node in both IPC and CPC.