The IMO ship identification number is made of the three letters IMO followed by the seven-digit number assigned to all ships by IHS Fairplay (formerly known as Lloyd's Register-Fairplay) when constructed.
Kirkpatrick Macmillan is best known for inventing the first pedal bicycle. Synopsis Born on September 2, 1812, in Keir Mill, Thornhill, Scotland, Kirkpatrick Macmillan was a blacksmith who, in 1837, built a dandy horseâa kind of bicycle on which the rider pushes himself along with his feet. Three years later, Macmillan had applied a crank to his machine, making the world's first pedal cycle. The machine also included a wooden frame and iron-tired wheels. Macmillan's invention was never patented, and for many years it was credited to one of his imitators, Gavin Dalzell. Macmillan died in his hometown on January 26, 1878.
The wheel clamp, originally known as the auto immobiliser, was invented in 1944 and patented in 1958 by Frank Marugg. Marugg was a pattern maker, a violinist with the Denver Symphony Orchestra, and a good friend to many Denver politicians and police department officials.he Denver police first used the wheel boot on 5 January 1955 and collected over US$18,000 (US$158,467 in 2015 dollars) in its first month of use. Although the wheel boot was first cast in steel, Marugg soon switched to a lighter aluminum-based alloy.