Complex sentence: Vinten developed the Model B-the first cine-camera that could be operated while hung over the side of an aircraft and Vinten began to work in close co-operation with both the military and the film industry.
Split into simpler sentences: Vinten developed the Model B-the first cine-camera that could be operated while hung over the side of an aircraft. This led Vinten into close co-operation with both the military and the film industry.