Abraham Lincoln was issued a patent for his invention to lift boats over shoals and other obstructions in a river.
21st June 1919: The German High Seas naval fleet is scuttled at Scapa Flow
21st June 2019
Abraham Lincoln was issued a patent for his invention to lift boats over shoals and other obstructions in a river.
The DuPont company’s organic chemist Wallace Carothers received a patent for linear condensation polymers, the basis of the material better known as nylon.
The Benz Patent-Motorwagen was powered by a single-cylinder four-stroke engine that produced approximately 0.75 horsepower, enabling the vehicle to reach speeds of around 16 kilometers per hour.
Thomas T. Goldsmith Jr was the director of research at DuMont Laboratories in New Jersey where he was exploring the use of cathode ray tubes in television sets.
Although the patent for the game was awarded to Darrow, it is now widely recognised that he was just one of many people who developed the complex design and rules that we now know as Monopoly.
Canned beer was an immediate success and the Gottfried Krueger Brewing Company saw sales skyrocket. Other brewers soon began to adopt the new packaging, and by the end of the year over 200 million cans of beer had sold in the United States.
Davis came up with the idea of reinforcing the stress points of garments with rivets after the wife of a woodcutter asked if he could make a pair of durable trousers for her husband, and approached Strauss with a business proposal whereby Strauss would finance the paperwork and the two men would share the patent.
On the 20th May 1873, Levi Strauss and Jacob Davis secured the patent for riveted blue jeans.
On the 31st December 1935, the board game Monopoly was patented.
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