duplex telegraphy sentence in Hindi
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- He was president of Franklin Telegraph Co ., from 1869 to 1871, during which time he invented the first practical system of duplex telegraphy which was successfully applied to the English, French and Belgian lines.
duplex telegraphy sentences in Hindi. What are the example sentences for duplex telegraphy? duplex telegraphy English meaning, translation, pronunciation, synonyms and example sentences are provided by Hindlish.com.