The Wonderbra is a type of push-up underwire brassiere that gained worldwide prominence in the 1990s. Although the Wonderbra name was first trademarked in the U.S. in 1955, the brand was developed in Canada. Moses (Moe) Nadler, founder and majority owner of the Canadian Lady Corset Company, licensed the trademark for the Canadian market in 1939. By the 1960s the Canadian Lady brand had become known in Canada as "Wonderbra, the company." In 1961 the company introduced the Model 1300 plunge push-up bra. This bra became one of the best-selling Canadian styles and is virtually identical to today's Wonderbra.