The lie detector, invented in 1921 by John Augustus Larson, was first used in the Netherlands.
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George Westinghouse Jr. patented steam power brake devices in the US.
Inventor John Hyatt registered cellulose nitrate (celluloid) as a trademark.
After encountering many difficulties, Nathan Stubblefield was finally granted a US patent for his new version of a wireless telephone.
Leonardo da Vinci unsuccessfully tried to fly his famous Flying Machine invention for the first time.
Inventor Fred Waller patented the aquaplane, which would become water skis.
