Telegraphy
![History of Telegraphy World in the Eighteenth and Early Nineteenth Centuries [1]](http://data.docslib.org/img/264x/55782194b32f7af85bf1523d0c1cc07a.webp)
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- RTSL-E Wireless Telegraphy Act Transmission Licence
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- Guglielmo Marconi, Entrepreneur Nobel Prize for Physics 1909
- ZEN and the ART of RADIOTELEGRAPHY Carlo Consoli, IK0YGJ