In any event, I don't think these games came out until 1979.
Star Battle was show at the Ohio MAA show on May 11-12, 1979.
The introduction of Cosmic Wars was announced in the 11/15/79 issue of Play Meter.
As an aside, the 6/15/80 issue of Play Meter says that Coffee-Mat had recently "...displayed its latest cocktail table and a video game called Nimbus (another kind of reaction tester)...:
Despite their description, I don't think this was actually a video game. It might have been one of those reaction testers popular at the time that timed how quickly you pressed a button twice in succession. I think, however, that I did read the Coffee-Mat made a cocktail table video game back around 1974, but now I can't rind the article (I think it was in Vending Times or maybe Cashbox, but maybe I'm misremembering).
The big question is: What games were they talking about? I've never seen any reference to a cocktail pinball game with the Allied name in 1977, and certainly not in 1976.
The answer might be here: