Who is Cyrille Duquet?
Even though he is less known in the history of the invention of the telephone, the handset he created is still in use worldwide on land-line PSTN telephones. Originally working in the field of clocks and watches, he was also a passionate jewellery collector. He is credited for inventing the first telephone that had a combined system of the transmitter and the receiver in a single unit. Duquet sold his patent later for just over 2,000 dollars.
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"Cyrille Duquet." Biographies.net. STANDS4 LLC, 2022. Web. 15 Aug. 2022. <https://www.biographies.net/people/en/cyril_duquet>.