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Harper's Encyclopedia of United States History (ed. Benson Lossing) 4 0 Browse Search
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Browsing named entities in Harper's Encyclopedia of United States History (ed. Benson Lossing). You can also browse the collection for Thomas A. Edison or search for Thomas A. Edison in all documents.

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Harper's Encyclopedia of United States History (ed. Benson Lossing), Telephone, the (search)
s his method before the American Academy of Arts and Sciences of Boston......May 10, 1876 Bell's telephone exhibited at the Centennial Exhibition at Philadelphia, Pa.......June, 1876 Iron diaphragm first used by Bell......June 30, 1876 Edison's carbon, loud-speaking telephone invented......January, 1877 Professor Bell exhibits at the Essex Institute, Salem, Mass., his telephone, using a powerful horseshoe magnet, by which a short speech, shouted into a similar telephone in Boston, 77 First-known telephone line connects the office of Charles Williams, electrician, in Boston, and his house in Somerville......April, 1877 First telephone exchange established in Boston, Mass......1877 One form of microphone invented by Edison......April 1, 1877 Experiments begun in Brown University by Prof. Eli W. Blake, Prof. John Pierce, and others, result in the construction by Dr. William F. Channing of the first portable telephone......April, 1877 Handle telephone, now gene