When did Meucci submit a patent caveat for his device?
1871
1865
1880
1890
Answer
In 1871, Antonio Meucci submitted a patent caveat for his device, which he called the "teletrofono." This device allowed for the transmission of speech over a distance using electrical signals. Meucci's caveat was a temporary measure that allowed him to hold his invention for one year while he prepared a full patent application.
Antonio Meucci Brain Battle: 31 Questions to Win the War
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