Many interesting inventions were created by predecessors but were forgotten by later generations. (According to Knowledge)
Many people used bicycle tires as swimming rings in Germany in 1925.
The unicycle was invented by M. Goventosa de Udine in 1931. It can travel up to 150 km/h.
The bicycle, which can travel on land and water, was invented in Paris in 1932.
The all-terrain vehicle, the forerunner of the field vehicle, was invented in England in 1936.
In 1921, American inventors invented the radio stroller, making it convenient for housewives to keep up with the news.
Interesting invention in America in 1931, a hat that can be worn while listening to the radio.
Bulletproof glass was invented in New York, USA in 1931.
The mobile vehicle was invented by a French engineer in 1934.
The Piano You Can Play While Lying in Bed was designed specifically for bedridden people in England in 1935.
Reading glasses were invented in England in 1936. No need to sit, you can still read comfortably while lying in bed.
Heated vests were a powerful aid to traffic police in the US in 1932.
Invention of a safety device attached to the front of a car to prevent injury when hitting a pedestrian in France in 1924.
The Global Positioning System (GPS) was first conceived and invented in 1932.
The invention of the folding ladder for rescue by L. Deth in 1926 in the Netherlands.
The newspaper was published and printed via the fax machine invented in New York, USA in 1938.
The blizzard mask was invented in Canada in 1939.
The oxygen supply trolley was introduced in England in 1938.
