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| Omfang
| XI, 331 sider ; : illustrasjoner
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| Opplysninger
| "The single-wire telegraph revolutionized long distance communication but it was not the brainchild of one inventor, Samuel Morse. Ezra Cornell and Joseph Henry made crucial contributions. This book presents Morse as primarily a businessman and consolidator of ideas who, in conflict with his associates, sought to present the telegraph as a uniform system under his sole imprimatur"--
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| Emner
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| Dewey
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| ISBN
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