Patent ID: 7231734

Claim:
An electronic sign system for a vehicle, comprising: a single elongate rail adapted to be affixed to the vehicle, the single elongate rail having a first mounting surface in a first plane and a second mounting surface in a second plane, said first plane and said second plane intersect at an angle; at least one electronic display module operable to produce a display, the at least one electronic display module having a front side from which the display is viewable and a first edge; and at least one flange member extending from the first edge of the at least one electronic display module, the at least one flange member positioned to be attached to the first mounting surface of the elongate rail causing a portion of the front side of the display module near the first edge to be compressed against the second mounting surface to support the at least one electronic display module from the single elongate rail such that substantially all of the vertical support to the at least one electronic display module is provided by the single elongate rail.