%0 Journal Article
%T D迆plex telef車nico - Duplex telephonic
%A Santos L車pez
%A Pascual
%J Andelma
%D 2006
%I Centro de Estudios Hist車ricos Fray Pasqual Salmer車n
%X Only 19 years after a timid introduction of telephony in Spain and seven years before the founding of the National Telephonic Company of Spain, Pascual Salmer車n G車mez records his two patents: "Duplex telephonic" and "Simultaneous duplex telephonic with telegraph machines". Two high technical complexity patents, registered in 1917 in the town of Arucas, province of Gran Canaria analyzed to our readers.Nephew of the inventor of the "Float Salmer車n," Jos谷 Salmer車n Rojas and brother of Ger車nimo G車mez Salmer車n, inventor of "Cereal谷metro" and owner of the theater Borras and with which we ended the saga Salmer車n.
%K Duplex telephonic
%K History of Telegraphy
%K History of Telephony
%K History of Freemasonry
%U http://tecnologiaycultura.net/andelma/Andelma13.pdf#page=17