Bilder Videos

Geschichte des Telegraphen Bilder ❘ Science Photo Library

Morse code system,1860
11672842 - Morse code system,1860
Von Soemmerring telegraph,1809
11672864 - Von Soemmerring telegraph,1809
Combined printer-telegraph,1860
11672838 - Combined printer-telegraph,1860
Telegraph relay device,1860
11672841 - Telegraph relay device,1860
Telegraph receiver,1860
11672840 - Telegraph receiver,1860
Cooke and Wheatstone telegraph,1830s
11672865 - Cooke and Wheatstone telegraph,1830s
Pocket telegraph device,1860
11672844 - Pocket telegraph device,1860
Dial telegraph,1860
11672843 - Dial telegraph,1860
Electric telegraphy in Germany,1850
11672870 - Electric telegraphy in Germany,1850
Electric eel in a tank of water,1860
11672839 - Electric eel in a tank of water,1860
Telegraph dial mechanism,1850
11672866 - Telegraph dial mechanism,1850
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