inflatable sign means a sign or advertising device designed to be airborne and tethered to the ground, a vehicle or any other structure and shall include balloons and any other inflatable advertising device;
Portable sign means a sign not permanently affixed to the ground and designed in such a manner as to be capable of being moved from place to place but does not include a sidewalk sign;
Pole sign means a single or multiple-faced sign eight or more feet above grade, supported by one or more uprights in the ground and detached from any building or structure.
Mobile Sign means a sign mounted on trailer or frame, lighted or unlighted, which is not permanently attached to a structure or the ground.
Fluoroscopic imaging assembly means a subsystem in which X-ray photons produce a visual image. It includes the image receptor(s) such as the image intensifier and spot-film device, electrical interlocks, if any, and structural material providing linkage between the image receptor and diagnostic source assembly.