Bulletproof glass, demonstration by the best rifle man of the New York police, 1931.
One wheel motorcycle (invented by Italian M. Goventosa de Udine). Maximum speed: 150 kilometers per hour ( 93 Mph).
A group of youngsters tied a bike tyre around the body as a swimming aid. Germany, 1925.
Wooden bathing suits, supposed to make swimming a lot easier. Haquian, Washington, USA, 1929.
Stroller equipped with a radio, including antenna and loudspeaker, to keep the baby quiet; USA, 1921.
Portable radio in a straw hat, made by an American inventor in 1931.
In 1936, inventor R. Handl came up with the movable heel plate, but it wasn’t until 1996 that this concept revolutionized skating.
Extensible caravan, built by a French engineer. France, 1934.
Piano especially designed for people confined to bedrest; Great Britain, 1935.
A pair of spectacles especially designed for reading in bed. England, 1936.
This all-terrain car can descend slopes up to 65 degrees; England, 1936.
Electrically heated vest, developed for the traffic police in the United States, 1932. The power is supplied by electric contacts in the street.
A turntable linked to a film projector. It comes with single, dual and triple turntable. Designed by F.B.A. Prinsen, 1929.
This land-and-water bike can carry a load of 120 pounds; Paris, 1932.
Kind of shovel on a car. Purpose: reducing the number of casualties among pedestrians. Paris, 1924.
Hearing light with a new invented apparatus, 1912.
Yesteryear’s TomTom, a rolling key map that passes through the screen in a tempo determined by the speed of the car; 1932.
The emergency bridge can easily be transported on a handcart; invented by L. Deth. The Netherlands, 1926.
In 1938, the world’s first wireless newspaper was sent from WOR radio station in New York City. In this photo, children are reading the children’s page of a Missouri paper
Plastic face protection from snowstorms. Canada, Montreal, 1939.
A wartime stroller equipped with gas protection; England, Hextable, 1938.
A Colt 38 carrying a small camera that automatically takes a picture when you pull the trigger. At the left: six pictures taken by the camera. New York, 1938.
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