k ELECTRIC TELEGRAPH Including Cooke and Wheatstone single and double needle instruments ELECTRIC TELEGRAPH Including Cooke and Wheatstone single and double needle instruments Figs 4 5. Sounder Fig 7 for Morse telegraph which enabled signal to be read aurally dispersing with taped messages. Wheatstones Alphabetical Telegraph Fig 9. Combination Printing Telegraph Fig 10 in which A.A. Lovett brought together the best features of the House and Hughes telegraphs 1859. Editorial Stock Photo - Afloimages
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ELECTRIC TELEGRAPH Including Cooke and Wheatstone single and double needle instruments ELECTRIC TELEGRAPH Including Cooke and Wheatstone single and double needle instruments Figs 4 5 . Sounder Fig 7 for Morse telegraph which enabled signal to be read aurally dispersing with taped messages. Wheatstone s Alphabetical Telegraph Fig 9 . Combination Printing Telegraph Fig 10 in which A.A. Lovett brought together the best features of the House and Hughes telegraphs: 1859.
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ELECTRIC TELEGRAPH; Including Cooke and Wheatstone single and double needle instruments

ELECTRIC TELEGRAPH; Including Cooke and Wheatstone single and double needle instruments (Figs 4 & 5). Sounder (Fig 7) for Morse telegraph which enabled signal to be 'read' aurally; dispersing with taped messages. Wheatstone's Alphabetical Telegraph (Fig 9). Combination Printing Telegraph (Fig 10) in which A.A. Lovett brought together the best features of the House and Hughes telegraphs: 1859.

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143315938

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31-08-2020

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