An emergency sign is mounted to a canopy that is attached to a support such as a ceiling or vertical wall. The canopy includes a post, and the sign includes a housing having a slot for receiving the post. The slot includes a wide portion and a narrow portion. The post is insertable into the wide portion and then slidable into the narrow portion. The sign housing includes a pair of locking arms that are spread apart by movement of the post into the narrow portion, and then snap back to a position blocking reverse travel of the post out of the narrow portion. The canopy includes through-holes for receiving mounting screws to secure the canopy to a support. Each through-hole includes radially inwardly projecting ears which are deformable in response to the entry of a screw into the through-hole to retain the screw in the through-hole during the mounting procedure.

An electric luminous display unit for conveying visual information including a housing comprising an opaque front face portion of substantially rigid molded plastic, an elongated groove in the front face portion of the housing, inert gas-containing glass tubing located in the groove and extending therealong, and electrical means located behind the front face portion of the housing and electrically connected to ends of the glass tubing for supplying electrical energy to illuminate the same.

A display panel for a pinball machine utilizes a lightweight plastic housing member with a plurality of apertures therein for retaining light bulbs. A glass lens and film having an image thereon are resiliently retained on the housing member with channel members that extend about the periphery of the lens and housing. The display may be removed and installed as a unitary piece in a pinball game cabinet.

A lighting indicator assembly is provided that includes a main unit, a light plate and an outside frame. Inside the main unit a voltage transformer, circuits and other components are accommodated. The light plate includes a plate body, on which grooves are formed. The grooves outline alphanumeric characters. A plurality of light tubes are disposed in the grooves to form illuminated representations of the alphanumeric characters. At least two light tubes form each character. The light tubes are connected to each other by connecting wires and connectors. The light plate is accommodated at the front side of the main unit. The outside frame is fitted to the front of the main unit. The outside frame and main unit are joined as one unit by means of projections on the outside frame engaging openings formed in the main unit. The outside frame presses and fixes the plate body of the light plate to the main unit.

An address plate is fitted over a building wall having a stepped profile configuration established by overlapped courses of shingles or clapboards. The address plate includes a generally flat display panel for displaying indicia pertaining to the address of the building and tongues inserted between the overlapped courses to hold the display panel in juxtaposition with a selected course. Tabs are placed at steps between the overlapped courses for fasteners which secure the address plate in place.