Equipment and methods for entering and conducting a prize drawing game of chance are disclosed, some of which do not require the participant to make a purchase or pay anything of value in order to enter. Entry forms are provided which depict and advertise the product which the game promotes, and which...http://www.google.com/patents/US5855369?utm_source=gb-gplus-sharePatent US5855369 - Equipment for and methods of conducting a prize drawing game of chance
