The cinématographe is a film camera, which also serves as a film projector and developer. It was invented in the 1890s. There is much dispute as to the identity of its inventor. Some argue that the device was first invented and patented as "Cinématographe Léon Bouly" by French inventor Léon Bouly in February 12, 1892. It is said that, due to a lack of fee, Bouly was not able to pay the rent for his patent the following year, and Auguste and Louis Lumière's engineers bought the license.