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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.
The following is a brief summary of the history of the development of the telephone: 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
By 1930, AT&T's "two-way television-telephone" system was in full-scale experimental use. [7] [20] The Bell Labs' Manhattan facility devoted years of research to it during the 1930s, led by Dr. Herbert Ives along with his team of more than 200 scientists, engineers and technicians, intending to develop it for both telecommunication and broadcast entertainment purposes.
The movie was released shortly before AT&T began its efforts to commercialize its Picturephone Mod II service in several cities and depicts a video call to Earth using an advanced AT&T videophone—which it predicts will cost $1.70 for a two-minute call in 2001 (a fraction of the company's real rates on Earth in 1968).
Telephone calls are initiated most commonly with a keypad or dial, affixed to the telephone, to enter a telephone number, which is the address of the call recipient's telephone in the telecommunications system, but other methods existed in the early history of the telephone.
A music video is a video that integrates a song or an album with imagery that is produced for promotional or musical artistic purposes. Modern music videos are primarily made and used as a music marketing device intended to promote the sale of music recordings.
The Box, originally named the Video Jukebox Network, was an American broadcast, cable and satellite television channel that operated from 1985 to 2001. The network focused on music videos, which through a change in format in the early 1990s, were selected by viewer request via telephone; as such, unlike competing networks (such as MTV and VH1), the videos were not broadcast on a set rotation.
Fig 7 Le Telephone by T du Moncel Paris 1880 (Large) A tin can phone is a type of acoustic (non-electrical) speech-transmitting device made up of two tin cans, paper cups or similarly shaped items attached to either end of a taut string or wire.