DIFF Subgroup
H01Q 25/04 Multimode antennas
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Antennas or antenna systems providing at least two radiating patterns > Multimode antennas
CPC:
Antennas or antenna systems providing at least two radiating patterns (arrangements for changing or varying the orientation or the shape of the directional pattern H01Q3/00) > Multimode antennas
No child classifications to compare. This is a leaf node in both IPC and CPC.