DIFF Subgroup
H01Q 7/04 Screened antennas (H01Q7/02, H01Q7/06 take precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Screened antennas
CPC: Screened antennas (H01Q7/02, H01Q7/06 take precedence)
Full Title
Full titles differ between systems:
IPC:
Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop > Screened antennas
CPC:
Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop > Screened antennas (H01Q7/02, H01Q7/06 take precedence)
No child classifications to compare. This is a leaf node in both IPC and CPC.