 The DP70 (DP stands for "Double Projector") was invented and developed by a team headed by Jan-Jacob Kotte of Philips between 1952–54, as part of the Todd-AO system.A core objective of the project was to create a single machine that could project both the Todd-AO 5/70 format and the 4/35 format which was, and was likely to remain, the dominant standard for theater exhibition.The first DP70s were exported from The Netherlands to the United States in the fall of 1954, and were used for the roadshow release of the feature that was made to launch Todd-AO, "Oklahoma!"