Roberto Landell de Moura

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Father Roberto Landell de Moura
Born	(1861-01-22)22 January 1861 Porto Alegre, Rio Grande do Sul, Empire of Brazil
Died	30 June 1928(1928-06-30) (aged 67) Porto Alegre, Rio Grande do sul, Brazil
Known for	communications technologies

Father Roberto Landell de Moura (January 21, 1861 – June 30, 1928), commonly known as Roberto Landell, was a Brazilian Roman Catholic priest and inventor. He is best known for his attempts in the 1880s to develop long-distance audio transmissions device that combined an improved megaphone device and a photophone (using light beams).^[1] Landell received patents in Brazil and the United States during the first decade of the 1900s in which he also included designs that he claimed could transmit voice using radio waves.^[2]