Anyone know where the Dynatechnics Plant / Bowling Alley was?

It's definitely not in Seal Beach, you can see the TRW (now Northrop Grumman) Space Park buildings in the background. Which puts it in Redondo Beach, not Seal Beach. (Or Manhattan Beach, El Segundo, or Hawthorne.) Based on the angle I'd guess somewhere near Aviation and Rosecrans.

https://www.google.com/maps/@33.8989662,-118.3711129,15z