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Inventor
Country: United States Of America
Electric telegraph system and apparatus therefor
Improvement in alphabet and system of writing in cipher
Improvements on the mariner's compass
Telegraphic code
Telegraphic instrument
Electric telegraph system and apparatus therefor
Improvement in alphabet and system of writing in cipher
Improvements on the mariner's compass
Telegraphic code
Telegraphic instrument
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Profile ID: LFCA-PAI-P-37012