decades. Chicago Coin also adapted Speedway into a motorcycle racing game, Motorcycle, in 1970. Speedway had an influence on Nolan Bushnell, who as a college student worked at an arcade where he became familiar with EM games such as Speedway, watching customers play and helping to maintain the machinery, while learning how it worked and developing his understanding of how the game business operates. When he founded Atari, Bushnell had originally planned to develop a driving video game, influenced by Speedway which at the time was the biggest-selling game at his arcade, but ended up developing Pong (1972) instead; Atari eventually developed a driving video game later on, Gran Trak 10 (1974). 1970s In 1973, Chicago Coin was one of the many companies who created Pong (1972) clones with TV Ping Pong (1973). In subsequent years, the company took to licensing games from other manufacturers including TV Goalee (1974) from Australian Leisure & Allied Industries, Super Flipper (1975) (originally UFO) from Model Racing of Italy, and Destruction Derby (1975) from Exidy of California. As a result of entering the video game market, in 1974 Chicago Dynamic Industries was one of the many companies sued by Magnavox regarding patents related to the Magnavox Odyssey (1972). Chicago Coin's TV Pingame (1973) was a digital video game adaptation of pinball that had a vertical playfield with a paddle at the bottom, controlled by a dial, with the screen filled with simple squares to represent obstacles, bumpers and pockets. This inspired a number of clones, including TV Flipper (1973) by Midway Manufacturing, Exidy's TV Pinball (1974), and Pin Pong (1974) by Atari, Inc. The latter replaced the dial controls with button controls. Following subsequent financial trouble, Chicago Dynamic Industries sold the assets of Chicago Coin which were incorporated into the new company Stern Electronics, Inc. Notable pinballs Chicago Coin tables are often lesser known than those made by Gottlieb, Williams, and Bally. Nonetheless, there were several Chicago Coin tables which stood out amongst the larger market. Sun Valley (1962) Bronco (1963) Stage Coach (1968) Casino (1972) Hee Haw (1973) Riviera (1973) Hi Flyer (1974) Gold Record (1975) Red Baron (1975) Hollywood (1976) Sound Stage (1976) References External links Internet Pinball Database Game manufacturers Pinball manufacturers Manufacturing companies based in Chicago Defunct companies based in Chicago