Did Tesla Invent Radar?

Seventeen years after Tesla prophesied about shooting out concentrated rays and collecting their reflections on a fluorescent screen, Dr. Emile Girardeau and his French team built and installed radar on ships and land stations, using, he said, “precisely apparatuses conceived according to the Principles stated by Tesla.”Girardeau added that Tesla may have been “dreaming, since he had at his disposal no means of carrying them out, but one must add that if he was dreaming, at least he was dreaming correctly.”