"Telégrafo neumático : bombas de compresión y máquina de v…. Free illustration for personal and commercial use.
over 2 years
"Enlace telegráfico del reloj-tipo y de los indicadores".. Free illustration for personal and commercial use.
over 2 years
"Timbre temblon de escape, sistema Aubine".. Free illustration for personal and commercial use.
over 2 years
"Pila de Daniell empleada en la telegrafía (modelo de Breg…. Free illustration for personal and commercial use.
over 2 years
"Pilas empleadas en la telegrafía".. Free illustration for personal and commercial use.
over 2 years
"Aparatos telegráficos del cable de Brest a Saint Pierre M…. Free illustration for personal and commercial use.
over 2 years
"Cable trasatlántico de la linea Brest a San Pedro, tendid…. Free illustration for personal and commercial use.
over 2 years
"Cables submarinos : vista exterior y corte". Free illustration for personal and commercial use.
over 2 years
"Cables trasatlánticos de la linea Valentia a Terranova".. Free illustration for personal and commercial use.
over 2 years
"Cable submarino de varios hilos".. Free illustration for personal and commercial use.
over 2 years
"Empalmes de los hilos telegráficos".. Free illustration for personal and commercial use.
over 2 years
"Tensor".. Free illustration for personal and commercial use.
over 2 years
106209. Free illustration for personal and commercial use.
over 2 years
"Montaje del sistema duplex Tommasi".. Free illustration for personal and commercial use.
over 2 years
"Receptor del telégrafo armónico".. Free illustration for personal and commercial use.
over 2 years
"Trasmisor del telégrafo armónico".. Free illustration for personal and commercial use.
over 2 years
"Vibrador del telégrafo armónico Gray".. Free illustration for personal and commercial use.
over 2 years
"Montaje del sistema armónico de Gray".. Free illustration for personal and commercial use.
over 2 years
"Diagrama de un sistema duplex".. Free illustration for personal and commercial use.
over 2 years
"Montaje de una estación electro-automática Wheatstone".. Free illustration for personal and commercial use.
over 2 years
"Detalles del receptor automático".. Free illustration for personal and commercial use.
over 2 years
"Receptor del telégrafo automático de Wheatstone".. Free illustration for personal and commercial use.
over 2 years
"Trasmisión de los signos".. Free illustration for personal and commercial use.
over 2 years
"Diagrama de la trasmisión de los signos en el aparato aut…. Free illustration for personal and commercial use.
over 2 years
"Despacho impreso automáticamente en la estación de destin…. Free illustration for personal and commercial use.
over 2 years
"Transmisor y receptor del pantelégrafo Caselli".. Free illustration for personal and commercial use.
over 2 years
"Telégrafo autográfico Meyer".. Free illustration for personal and commercial use.
over 2 years
"Facsimile de un dibujo reproducido por el pantelégrafo Ca…. Free illustration for personal and commercial use.
over 2 years
"Pantelégrafo Caselli".. Free illustration for personal and commercial use.
over 2 years
"Mecanismo de la impresión en el aparato de Hughes".. Free illustration for personal and commercial use.
over 2 years
"Aparato impresor de Hughes". Free illustration for personal and commercial use.
over 2 years
"Emisiónes de corriente en el aparato Hughes".. Free illustration for personal and commercial use.
over 2 years
"Mecanismo de las teclas : función del árbol vertical y de…. Free illustration for personal and commercial use.
over 2 years
"Relación entre la rueda de tipos y la impresora".. Free illustration for personal and commercial use.
over 2 years
"Receptor del sistema Morse-Digney".. Free illustration for personal and commercial use.
over 2 years
"Receptor del telégrafo Siemens y Halske".. Free illustration for personal and commercial use.
over 2 years
"Aparato telegráfico Morse, con relais".. Free illustration for personal and commercial use.
over 2 years
"Manipulador del telégrafo de cuadrante Siemens y Halske".…. Free illustration for personal and commercial use.
over 2 years
"Receptor del telégrafo Morse".. Free illustration for personal and commercial use.
over 2 years
"Manipulador Morse".. Free illustration for personal and commercial use.
over 2 years