(under subclass 793) Subject matter wherein the overall physical length of the two active conducting masses is adjustable, as by the length of at least one of the masses being adjustable or by the relative spacing of the masses being adjustable, for such purposes as tuning or collapsing the doublet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
723, for single resonant end-fed linear type antennas adjustable in length for tuning.
880+, for antennas with adjustable or collapsible supports.
889, for rod-like antennas retractable into a support.
901+, and the Search Notes thereunder, for telescoping rod type antennas.
