Category:Electrical telegraphy

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An electric telegraph developed by George Beardslee in 1862 - Image by Rebecca Robbins Raines and The U.S. Army Signal Corps

The long-distance transmission of messages or information via electrical signals, usually over telecommunications lines or radio

Pages in category "Electrical telegraphy"

The following 6 pages are in this category, out of 6 total.

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Media in category "Electrical telegraphy"

The following 2 files are in this category, out of 2 total.

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