DIFF Subgroup
H01Q 1/28 Adaptation for use in or on aircraft, missiles, satellites, or balloons
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Details of, or arrangements associated with, antennas > Adaptation for use in or on movable bodies > Adaptation for use in or on aircraft, missiles, satellites, or balloons
CPC:
Details of, or arrangements associated with, antennas (arrangements for varying orientation of directional pattern H01Q3/00) > Adaptation for use in or on movable bodies (H01Q1/08, H01Q1/12, H01Q1/18 take precedence) > Adaptation for use in or on aircraft, missiles, satellites, or balloons
CPC subdivides this area 6x more granularly than IPC with 5 additional codes.
5 codes are CPC-only extensions.
Child Classifications
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