Your scraping the barrel there mate. didn't say the first, but one of the first, and if it was so robust so early why didn't vw, benz and the like not use it in production first.
er - they did...
''...The D-Jetronic system developed by Bosch in the early 1960's was the first mass-production electronic fuel injection system. It was primarily based on patents that Bosch licensed from the Bendix
corporation. Bendix developed the basic idea of using an inductive element coupled to manifold vacuum as a component in a loop circuit ("multivibrator") to develop the basic injection pulse width. The system was first used on the 1967 VW Type 3 motors. Bosch continued development of the system, and it was last used in the D-Jetronic form in about 1976. Variants of D-Jetronic were used by other manufacturers (Ford, Toyota, etc.) for many years, and various forms of "speed-density" injection systems similar to D-Jetronic are still in use today. Bosch developed many more types of electronic fuel injection after D-Jetronic (L-Jetronic, K-Jetronic, etc.) that had improved characteristics, and still is a dominant force in fuel injection systems today...''
Found in your RS Turbo... (KE-Jetronic?)