Bell's company, the American Bell Telephone

[zakiyatasnim]

Dishwasher (1886)
In 1886, a few days after Christmas, Josephine Harris Cochran filed a patent application with the U.S. Patent Office. Here’s what the design she wanted to patent looked like: a series of compartments sized to hold plates and cups, housed inside a wire cage with a rotating wheel that sprayed hot, soapy water onto dirty dishes.

Cochran founded a company to manufacture her invention, which later became known as Kitchenaid.



Contact lenses (1887)
Contact lenses of the late 19th century were made of glass and completely covered the eye. They were originally called "scleral lenses", emphasizing the connection with the white of the eye. Contact lenses were invented by the manufacturer of artificial eyes F. A. Müller.



Escalator (1891)
The mechanization of stairs began at the turn of the 20th century thanks to New York inventor Jesse Reno. Reno's first model of escalator was installed at the Old Iron Pier on Coney Island. The invention quickly gained popularity among miners and factory workers of the Industrial Revolution era, who could save energy during long commutes.



Car radio (1919)
A. H. Grebe, a radio manufacturer from New York, experimented with an early version of the car radio, which became an important part of the emerging car culture of the 1920s.

Grebe's device included a vacuum tube in the back seat, a small cayman islands number data motor to power it, and a separate battery to power the radio itself.



Artificial Heart (1961)
With the help of Dr. Henry Heimlich, comedian and ventriloquist Paul Winchelly filed a patent for the world's first artificial heart in 1961. The device contained a small battery pack that had to be worn on the body and an internal pump controlled by it.

Although Vincilli's concept was approved two years later, it was not until 1982 that Dr. Robert Jarvik's invention was first successfully implanted in a human.



Drone (1964)
The first unmanned aircraft was the Lockheed D-21B. In the photo below, it is the smaller of the aircraft.

Between 1969 and 1971, it flew reconnaissance missions in enemy airspace over China, but was later recalled because it crashed frequently, and President Nixon introduced smarter satellites to take photos.