Abstract: A process for making a brick comprises the steps of prearranging at least one pair of half-shells (3a, 3b) and fixing said half-shells (3a, 3b) to each other to define a main body (2) of the brick with a cavity {4} therein. The process further comprises the step of introducing a preset quantity of argon into said cavity (4), A brick comprises a pair of half-shells (3a, 3b) fixed to each other to define a main body (2) of said brick (1); said main body (2) exhibits an inner cavity (4); said cavity (4) holds a preset quantity of argon.

Abstract: A chest for storing, carrying and serving foodstuffs specifically designed for use in conjunction with recreational activities such as tailgating. The chest includes five rigid walls defining a volume of storage space and a unique cover moveable between an open and closed position relative to the five rigid walls. The cover is pivotally mounted to one of the rigid walls and is formed of a plurality of sectional parts pivotally attached to one another. The chest also includes compartments designed for holding various items and containers. The chest can be removably and replaceably secured to the tailgate of a vehicle using a mounting structure.

Abstract: Particular zones are given a distinctive appearance with respect to surrounding areas on a surface such as a printed-circuit board to be drilled in an automatic process. The surface is automatically scanned in a system of two rectilinear perpendicular coordinates by a reader comprising at least one detector which is responsive to the distinctive appearance. The coordinates of the surface points for which the detector delivers a signal representing the presence of the distinctive appearance during the scanning are recorded in a coded form which can be utilized by the automatic machine.