(under subclass 745) Subject matter wherein the active antenna is of the slot type as defined in subclass 767 below.
(1) Note. For classification in this subclass the slot type antennas must have an adjustable reactance separate and distinct from the slot itself. Slot type antennas having a slidable short-circuiting bar across the slot remote from the feed line connection, for example, which defines the length of the slot and whereby the length of the slot may be adjusted for tuning are not classified in this subclass, but in subclasses 767+, below.
