Abstract: Magnetizable particles ranging in size from 0.5 to 20 microns are dispersed in an insulating binder of thermosetting material to form a mixture in which such particles comprise approximately 90% of the weight of such mixture. The particles are either spherical or the mixture may be magnetizable material coated on spherical glass balls of micron size. The mixture is applied by painting or spraying to form a coating of approximately 40 mils or an otherwise metallic reflecting body or may be so applied to a sheet of flexible material which in turn is affixed to a metallic material otherwise exhibiting reflectivity for energy in the frequency range of 2 to 10 Ghz.

Abstract: A board game for two or more players combines elements of strategy, knowledge of geography and chance in simulating the action of intelligence agents in performing assigned missions. The board surface is an unlegended map of the principal part of the world with unidentified target sites designated thereon. The map is marked with latitude parallels and longitude meridians at small intervals, e.g., 10.degree., the intersections forming a grid of spaces along which the playing pieces move. Random drawing of secret mission cards by each player assigns particular target sites to be reached by each player and the particular missions to be performed at the sites. The object of the game is to move the playing pieces to the assigned target sites by roll of dice, carry out the designated mission, and, if required, return to the starting point, at the same time trying to impede the progress of the other players.

Abstract: A multidimensional woven, resinous impregnated, rocket nozzle structure composed of fibers running along the longitudinal axis of the nozzle and positioned radially in conformance with the general shape of the nozzle with a weaving fiber under tension and running circumferentially and radially normal to the said longitudinal axis to interlock with said longitudinal fibers in at least three directions.