rap
rap
Utility of wires: office superintendent of telegraph / Philadelphia, Pa., January 1, 1909
rap
The secret corresponding vocabulary: adapted for use to Morse's electro-magnetic telegraph, and also in conducting written correspondence, transmitted by the mails, or otherwise / by Francis O.J. Smith, Esq
rap
Radio's 100 men of science: biographical narratives of pathfinders in electronics and television / Orrin E. Dunlap, Jr
rap
Postal telegraph in the United States (to accompany H. R. no. 2365) / C.C. Washburn
rap
Regulations for United States military telegraph lines, Alaskan cables, and wireless telegraph stations, U.S. Signal Corps / prepared under the direction of Brigadier General James Allen, Chief Signal Officer of the Army, 1911
rap
The fundamentals of wireless and telegraphy for beginners.
rap
[Collection of handbooks and manuals on telegraphy].
rap
The legacy of William R. Plum: Civil War telegrapher, lawyer, and horticulturist / by Gerry Rader Watts
rap
Constitution of the Order of Railroad Telegraphers: revised and amended at the twenty-fifth regular and second triennial session of the Grand Division, held at St. Louis, Mo., May, 1927.
rap
Autobiographical and other writings / by Alan A. Campbell Swinton
rap
Field telephones and telegraphs for army use: including an elementary course in electricity and magnetism / by E.J. Stevens
rap
Telegraphy: a detailed exposition of the telegraph system of the British Post Office.
rap
The A.B.C. of wireless telegraphy: a plain treatise on Hertzian wave signaling, embracing theory, methods of operation, and how to build various pieces of the apparatus employed / by Edward Trevert [pseud.]
rap
The new general and mining telegraph code / by C. Algernon Moreing and Thomas Neal
rap
Conférence Radiotélégraphique Internationale de Washington, 1927: listes des délégués des gouvernements et des représentants des compagnies et des organismes internationaux.
rap
Fifty years of "Via Eastern": a souvenir and record of the celebrations in connection with the jubilee of the Eastern Associated Telegraph Companies MCMXXII.
rap
A collection of letters to Sir Charles William Siemens, 1823-1883 / with a foreword by Sir George H. Nelson, and a short biography by W.H. Kennett
rap
Duplex and quadruplex telegraphy, multiplex telegraphy, testing of circuits, printing and messenger-call systems, submarine telegraphy, high-speed telegraphy.
rap
Selected articles on government ownership of the telegraph / compiled by Edith M. Phelps
rap
Les buttes et la télégraphie optique / par le commandant de Rochas, correspondant du Ministère de l'instruction publique a Blois
rap
Wireless telegraphy and telephony without wires: a popular account of the past and present of wireless telegraphy and telephony which assumes no previous knowledge of the subject on the part of the reader / by Charles R. Gibson
rap
Submarine telegraphy / prepared by the Engineers of The Western Union Telegraph Company
rap
Die elektrischen Einrichtungen der Eisenbahnen: eine Anleitung zum Selbststudium der Telegraphen-, Telephon- und elektrischen Signal-Einrichtungen / von R. Bauer, A. Prasch, O. Wehr
rap
Die Drahtlose Telegraphie und Telephonie / bearbeitet von P. Lertes
rap
Die Maxwellsche Theorie und die Hertzschen Schwingungen: die Telegraphie ohne Draht / von H. Poincaré ; aus dem Französischen übersetzt von Max Iklé
rap
Telegraphy / by Sir W.H. Preece and Sir J. Sivewright ; revised and partly rewritten by W. Llewellyn Preece
rap
The first battalion: the story of the 406th telegraph battalion, Signal Corps, U.S. Army / by Peter Lambert Schauble
rap
Extel 100: the centenary history of the Exchange Telegraph Company / J.M. Scott
rap
A history of wireless telegraphy: including some bare-wire proposals for subaqueous telegraphs / by J.J. Fahie
rap
Wonderful inventions: from the mariner's compass to the electric telegraph cable / by John Timbs
rap
Duplex and quadruplex telegraphy: instruction paper / prepared by the engineers of the Western Union Telegraph Company
rap
Les grands inventeurs modernes: télégraphie: Amontons, Chappe, Ampère, Morse, Babinet, Sudre / par Mme la Csse Drohojowska (née Symon de Latreiche)
rap
Die electrische telegraphie / von Dr. W. Siemens
rap
Illustrations and descriptions of telegraphic apparatus / by Astley C. Terry and William Finn
rap
Wireless transmission of photographs / by Marcus J. Martin
rap
News over the wires: the telegraph and the flow of public information in America, 1844-1897 / Menahem Blondheim
rap
La télégraphie sans fil: la télémécanique et la téléphonie sans fil à la portée de tout le monde / par E. Monier ; préface du Dr. E. Branly
rap
The Phillips code: a thoroughly tested method of steno-telegraphy arranged for use in wire and radio communication: adaptable to teletype, teletypewriter and telemeter communication services / by Walter P. Phillips
rap
Militaire telegraphie: voorschrift veldtelegraafdienst.
rap
The thorough cipher code for telegraphing and for written communications where secrecy is desirable: a carefully compiled arrangement of ciphers and commercial and general meanings: with easy methods for the largest possible use of condensed material and
rap
La T.S.F. des amateurs: télégraphie, téléphonie: manuel pour la construction et l'utilisation des appareils récepteurs de télégraphie sans fil par ondes amorties et par ondes entretenues et des appareils de tél&
rap
Kleine Telegraphen-Schule für jüngere Post- und Telegraphenbeamte: ein hilfsbuch zum Selbstunterricht behufs Erlangung der Befähigung zur selbständigen Wahrnehmung des technischen Telegraphendienstes und zur Vorbereitung auf die Postas
rap
The new general and mining telegraph code ...: alphabetically arranged for the use of mining companies, mining engineers, stockbrokers, financial agents, and trust and finance companies / by C. Algernon Moreing and Thomas Neal
rap
Post Office telegraphs: connections of telegraph apparatus and circuits.
rap