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
De Candolle system De Candolle system The De Candolle system is a system of plant taxonomy by French (Swiss) botanist Augustin Pyramus de Candolle (1778−1841). The first taxonomic system by de Candolle, who introduced the term taxonomy, appeared in his description of the plants of France, his "Flore française" (1805–1815), in 5 volumes dealing with plant species found in France. The De Candolle system is a subsequent taxonomic system. The abbreviation "Syst." in de Candolle's work and subsequent literature refers to his "Regni vegetabilis systema naturale". The De Candolle system recognises the following groups of vascular plants (references to "Prodromus"). Within the "Prodromus"