Not only did Apple staff visit PARC more than once, some had actually worked there prior to Jobs' visit. The idea of getting Jobs to PARC was to help him understand the importance of technologies that others were already pushing at Apple.
Of course the way Steve Jobs told it, his one-day visit to PARC was the Eureka Moment of the Macintosh. It should surprise no one that his version of the story places him at the center of the resulting innovation. That doesn't mean it's the whole truth.
