Question: What was the country of origin of one of the major users of Butterfly style in 1980's hockey?

Related documents: [0]  [DOC] In ice hockey, "butterfly style" is a technique of goaltending distinguished by the goaltender guarding the lower part of the net by dropping to the knees to block attempts to score. The butterfly style derives its name from the resemblance of the spread goal pads and hands to a butterfly's wings. The "butterfly style" is contrasted with stand-up style, where most shots on a goal are stopped with the goaltender on their feet. Many factors helped make it a "de facto" standard style of play today, including the popularization of the goalie mask by Jacques Plante, Vladislav Tretiak's outstanding use of the style at the 1972 Canada–USSR Summit Series, the National Hockey League (NHL) emergence of Tony Esposito in the 1970s and Patrick Roy in the 1980s, the development of lightweight materials for pads and the influence of professional goaltending coaches such as Warren Strelow, Benoit and François Allaire. There are few who exclusively employ a stand-up style in the NHL. [END] 
[1]  [DOC] Patrick Jacques Roy (] ; born October 5, 1965) is a Canadian former professional ice hockey goaltender and the former head coach and vice-president of hockey operations for the Colorado Avalanche of the National Hockey League (NHL). He is regarded as one of the greatest goaltenders of all time. On January 27, 2017, in a ceremony during the All-Star Weekend in Los Angeles, Roy was part of the second group of players to be named one of the '100 Greatest NHL Players' in history. Patrick is the brother of Stéphane Roy. [END]  
Answer: Canada
Canada