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Collection of United States patents granted to Thomas A. Edison, 1869-1884 v.2
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https://library.si.edu/digital-library/book/collectionunitevol2edis
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Improvements in apparatus employed in wireless telegraphy
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https://library.si.edu/digital-library/book/improvementsinap00marc
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Lecture delivered at the Royal Academy of Science, Stockholm, on 11th December 1909
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https://library.si.edu/digital-library/book/lecturedelivere00marc
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Letters
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https://library.si.edu/digital-library/book/letters00chap
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Mémoire sur l'etablissement de lignes télégraphiques en Chine
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https://library.si.edu/digital-library/book/meymoiresurlquo00vigu
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Service des postes et télégraphes
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https://library.si.edu/digital-library/book/servicedespostes00abre
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Some notes on the telegraph companies of the United States
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https://library.si.edu/digital-library/book/somenotesonteleg00rich
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Magnetism
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https://library.si.edu/digital-library/book/magnetismsketcho00deri
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Telegraphs for the United States
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https://library.si.edu/digital-library/book/telegraphsforuni00unit
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The telegraph
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https://library.si.edu/digital-library/book/telegraphtransla00tern