DIFF Subgroup
H01P 1/219 Evanescent mode filters
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Auxiliary devices > Frequency-selective devices, e.g. filters > Evanescent mode filters
CPC:
Auxiliary devices (coupling devices of the waveguide type H01P5/00) > Frequency-selective devices, e.g. filters > Evanescent mode filters
No child classifications to compare. This is a leaf node in both IPC and CPC.