Technological and industrial history of 20th-century Canada engineer, George de Mestral, velcro, a two sided fastening technology based on hooks and loops, was introduced to a number of countries, including Canada, in the late 1950s. In Montreal, Velek Ltd. acquired the exclusive marketing rights for velcro in North and South America and Japan. The format for sound recordings changed in the years just following the war. In the US, Columbia Records introduced the long playing (LP) 33 format in 1948. Columbia made an agreement with Sparton Records, of London, Ontario, established in 1930, for the manufacture and distribution of its LP records in Canada. Not to be
George Bartholomew (inventor) George Bartholomew (inventor) George Bartholomew was an American inventor who is credited with the invention of concrete pavement. In 1886, Bartholomew moved to Bellefontaine, Ohio, after having learned about cement production. Bartholomew found a good source of limestone and clay in the area; from this, he hoped to create an artificial stone for paving. Bartholomew founded the Buckeye Portland Cement Company and set about developing a new cement for pavement. In 1891, the Bellefontaine city council approved the use of Bartholomew's invention for paving a test strip on Main Street outside the Logan County courthouse. This experiment proved successful, and