Assisted reproductive technology (ART) is the use of reproductive technology to treat infertility. This is today the only application of reproductive technology to increase reproduction that is used routinely. Examples include in vitro fertilization and its possible expansions. artificial insemination.
Let's look at some bikes. Check out this quick, 30-second vid of the U.S. Army training military dispatch riders in the 1940s: They're riding around on the Harley-Davidson WLA, which first saw production in 1940. Harley engineers took an existing civilian bike, the WL, and adapted it for military use with several changes. The fenders were shaped in such a way that mud flung by the wheel could exit from the sides rather than clog.
As part of war reparations, Harley-Davidson acquired the design of a small German motorcycle, the DKW RT 125, which they adapted, manufactured, and sold from 1948 to 1966. Various models were made, including the Hummer from 1955 to 1959, but they are all colloquially referred to as Hummers at present.