(under subclass 6.1) Aviator's helmet including a mount for securing an article, which article has a function other than to guard or protect the wearer's head.
SEE OR SEARCH THIS CLASS, SUBCLASS:
422, for a helmet having article attaching means and not specifically intended for use by an aviator.
SEE OR SEARCH CLASS
128, Surgery,
201.15+, for a helmet with an oxygen supply; especially, subclass 201.16 for a head covering having means to keep a head shield clear (e.g., wiper, etc.) and subclass 201.19 for a head covering having an oxygen feed and means to facilitate
voice communication.
340, Communications: Electrical, 945+, for an aircraft indicating system or alarm.