What is the fine-grained topic of the following text: When Harold Nielson (Augusto’s elder son) joined the company in 1956 it was en route to becoming the segment leader in Brazil, with innovative and revolutionary products, as the Diplomata model in 1961, the Urbanuss in 1987, the Panorâmico DD in 1998, and many others. Only return the topic.
Harold Nielson's contribution to the growth and innovation of his company in Brazil