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Drawings and notes by Antonio Meucci with a claimed date of 27 September 1870 show that Meucci understood inductive loading on long-distance telephone lines 30 years before any other scientists. The question of whether Bell was the true inventor of the telephone is perhaps the single most litigated fact in U.S. history, and the Bell patents ...
In August 1870, Meucci later claimed that he obtained transmission of articulate human voice at a mile distance by using as a conductor a copper plait insulated by cotton. He called his device "teletrofono". Drawings and notes by Antonio Meucci dated September 27, 1870, show coils of wire on long-distance telephone lines. [17]
However, his notebook drawings of March 1876, such as the one on March 8 (Fig. 7), are remarkably similar in both design and concept to his drawing over the previous three years. Similarly, his drawing of the liquid transmitter that transmitted the first human speech on March 10, 1876 (Fig. 8) is remarkably similar to his previous drawings.
Antonio Meucci's telephone. Reis's telephone around 1861, first device called telephone [22] A French Gower telephone of 1912 at the Musée des Arts et Métiers in Paris. Early 7th century AD - Chimu culture in Peru invents a string telephone using gourds and stretched hide. The original artifact is in the Smithsonian's National Museum of the ...
Charles Bourseul, Antonio Meucci, Johann Philipp Reis, Alexander Graham Bell, and Elisha Gray, amongst others, have all been credited with the invention of the telephone. [8] [9] Alexander Graham Bell was the first to be awarded a patent for the electric telephone by the United States Patent and Trademark Office (USPTO) in March 1876. [10]
Western Union advocated several more recent patent claims of Daniel Drawbaugh, Elisha Gray, Antonio Meucci, and Philip Reis in a bid to invalidate Alexander Graham Bell's master and subsidiary telephone patents dating from March 1876. A decision for Western Union would have immediately destroyed the Bell Telephone Company, and might have ...
11 February 1876: Elisha Gray invents a liquid transmitter for use with a telephone, but he did not make one. 14 February 1876 about 9:30 am: Gray or his lawyer brings Gray's patent caveat for the telephone to the Washington, D.C. Patent Office (a caveat was a notice of intention to file a patent application.
An immigrant, Antonio Meucci, brought with him a concept for the telephone. He is credited by many researchers with being the first to demonstrate the principle of the telephone in a patent caveat he submitted to the U.S. Patent Office in 1871; however, considerable controversy existed relative to the priority of invention, with Alexander ...