Abstract: A multiple ticket lottery system in which a player engages in one or more play actions on a first lottery ticket level in order to gain access to a second or higher ticket level in order to win a prize.

Abstract: A multiple ticket lottery system in which a player engages in one or more play actions on a first lottery ticket level in order to gain access to a second or higher ticket level in order to win a prize.

Abstract: Disclosed is an instant game card, preferably of the BINGO type, having a substrate onto which is printed a series of playing numbers. An unscratchable translucent varnish is applied onto the substrate and covers the playing numbers. A scratchable rub-off coating is applied onto the varnish, in such a manner as to surround the playing numbers without hiding the same. In use, when playing numbers are called, scratching of the scratchable rub-off coating surrounding each playing number that correspond to one of the called numbers, allow a player to visualize the position of the called playing numbers on his or her card.

Abstract: The invention relates to a process for preparing tri-iodo-, di-iodo- and mono-iodothyronines and tri-iodo, di-iodo and mono-iodothyroacetic acids, respectively from thyronine, triiodo or diiodothyro- nine and tetra-, tri- or diiodothyroacetic acid, by electrochemical reduction at controlled potential, in an aqueous medium rendered alkaline by the addition in particular of a tetraalkylammonium hydroxide, whereby either the iodine in 5 position or the iodine in 3 position is selectively reduced, depending on the potential at which operation is carried out, and which is determined previously by plotting a polarograph of the starting substance.