Abstract: A lottery numbers selector game which comprises an assemblage of card-like components; there being three different types of such, namely numeral cards each bearing a numeral within a predetermined range; a second group of cards which are of such quantity as when added to the first group will provide a total divisible by a predetermined divisor so as to present a number of rows of cards of like number. A second group of cards are distinctly identified and non-numerical bearing so as to readily permit elimination from game consideration of those rows containing any such members of the second group. There is provided a third type card which is single in number and serves as a determinator, bearing a message as by printing or the like for indicating to the player a particular row of numeral-bearing cards for selection.

Abstract: An acoustic imaging system for a wire guided torpedo having an array of tsducers arranged in the nose of a torpedo to receive acoustic signals. A spherical acoustic lens focuses the signals on the array of transducers. The outputs of the transducers are amplified, integrated, detected and passed to a set of gates which are sampled sequentially, and the outputs of the gates are passed by a wire to the launching vehicle.