Released in March 1973. Paddle Battle was designed for Allied Leisure by Universal Research Labs, who would later produce their own games as well as games for Stern.
Jack Pearson : "Allied Leisure heard about Pong and we got a distributor in California to send us one and we paid him about twice what it cost him to buy it. We didn't know anything about solid-state games. We were all relay logic so we took it to a company in Chicago called URL and they more-or-less copied the circuitry and started making boards for it. We came out with Paddle Battle and I think we sold more than Atari did.".
With various sources reporting 22,000 units sold, this was reportedly the best selling "Pong
"-clone of them all - perhaps even outselling Atari itself.