Guillermo González Camarena, Mexican scientist and inventor in 1934 fabricated his own television camara at the age of 17. He began to improve his television equipment and with his idea of giving it colour he produced a system called "Sistema Tricromático Secuencial de Campos, " in Spanish. This made the commission in charge of patents see that it was possible to adapt this system to the black and white television. They declared that the emission of televison services
was a contribution by John Logie Baird.