(under subclass 119) Devices for protecting persons in or near aircraft from danger or inconvenience.
(1) Note. This subclass includes propeller guards, windshields, crash pads, armor, etc., where they are essential parts of aircraft structure.
(2) Note. For armor attached to an otherwise complete aircraft, the search should be continued in Class 89, Ordnance, subclass 36, and see the notes to the definition of such subclasses.