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Morse, sounder, téléphone: description, fonctionnement et installation des appareils télégraphiques, recherche des dérangements, généralités sur la téléphonie à l'usage des candidats rédacteu

Archives, Room Use Only - TK5261.N38 1928




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The dial and the countryside / by L.J. Glanfield

Archives, Room Use Only - HE9144.G53 1938




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Brief description of wireless telegraphy and the apparatus for wireless electrical communication in use in aviation and infantry: translation no. 94 of Notice sommaire sur la télégraphie sans fil et les appareils de communication électrique

Archives, Room Use Only - UG605.F8 F7313 1917




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Ex ordinis philosophorum mandato renuntiantur philosophiae doctores: et artium liberalium magistri rectore magnifico Ioanne Adolpho Overbeck ... decano Gustavo Henrico Wiedemann ... procancellario Ludovico Lange ... inde a die primo mensis Novembris a. MD

Archives, Room Use Only - QC761.W54 1876




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Notice sommaire sur la télégraphie sans fil et les appareils de communication électrique sans fil en service dans l'aviation et l'infanterie.

Archives, Room Use Only - UG605.F8 F73 1924




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Pioneer inventions and pioneer patents: a lecture on patent law delivered to the senior engineering students of Purdue University of the classes of '22, '23, and '24 and previous classes / by Frank Keiper

Archives, Room Use Only - T223.Z1 K45 1924




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Rules and regulations to be observed by telegraph clerks, and all persons sending railway messages, or engaged in working the telegraphs on the London and North Western Railway.

Archives, Room Use Only - TK5263.L66 1906




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Catalogue of apparatus, material, tools, cars and camp equipment: used in connection with the outside plant.

Archives, Room Use Only - TK5295.W48 1929




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Elementary treatise on natural philosophy / by A. Privat Deschanel ; translated and edited, with extensive modifications, by J.D. Everett

Archives, Room Use Only - QC23.P7513 1883




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Transatlantic telephone cable.

Archives, Room Use Only - TK6373.T73 1956




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Short history of the telegraph: a lecture to the Post Office Telephone and Telegraph Society of London on February 19th 1934 / by H.G. Sellars

Archives, Room Use Only - TK5115.S45 1934




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Rules and regulations for the guidance of the officers and servants employed in the Telegraph Department, and also of such officers and servants in the Traffic Department as are required to possess a knowledge of, or to assist those working the telegraph

Archives, Room Use Only - TK5263.R85 1878




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From steam to glass: the curious story of Brazilian telecommunication / John Packer

Archives, Room Use Only - HE7994.P33 1996




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General railroad and telegraph laws of the State of Pennsylvania: including the acts relating to incline plane railways and street passenger railways, and such acts relative to corporations as affect railroad and telegraph companies, 1816-1883 / comp. and

Archives, Room Use Only - KFP301.A3 1884




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Reports of the examiners of section XXIII: (section IV-A, class VIII, of the catalogue): electro-medical apparatus.

Archives, Room Use Only - R857.E49 I58 1886




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Pocket blank code: number four, containing all five-letter words.

Archives, Room Use Only - HE7671.P63 1910




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Optisk telegraf: förhistoria och uppkomst samt utveckling i Sverige i relation till postverket / av Paul Gerhard Heurgren

Archives, Room Use Only - HE9723.H48 1932




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[Collection of Atlantic, Lake and Mississippi Telegraph items].

Archives, Room Use Only - TK5123.6.C65 1847




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[Collection of Atlantic, Lake and Mississippi Telegraph pamphlets].

Archives, Room Use Only - TK5123.6.C66 1847




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[Collection of Atlantic, Lake and Mississippi Telegraph circulars].

Archives, Room Use Only - TK5123.6.C665 1847




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Relevant π-hole tetrel bonding interactions in ethyl 2-triazolyl-2-oxoacetate derivatives: Hirshfeld surface analysis and DFT calculations

CrystEngComm, 2020, Advance Article
DOI: 10.1039/D0CE00335B, Paper
Muhammad Naeem Ahmed, Khawaja Ansar Yasin, Shahid Aziz, Saba Urooge Khan, Muhammad Nawaz Tahir, Diego Mauricio Gil, Antonio Frontera
We report the synthesis and X-ray characterization of four triazole derivatives that include an α-ketoester functionality and two phenyl substituents. The compounds form self-assembled dimers in the solid state establishing two symmetrically equivalent O⋯π-hole interactions.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry




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