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In page Russel S. Smart:

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Smart's litigation practice was extremely busy. He appeared in over 100 reported cases relating to intellectual property, and he regularly visited England to appear before the Privy Council on appeals.[6] By 1926, Smart's legal practice had grown to the extent that he decided it was necessary to bring in an experienced litigator to share his workload. Smart turned to Oliver Mowat Biggar, then the Chief Electoral Officer of Canada, and whom he had previously met as opposing counsel in 1924.[7] In 1927, the law firm became known as Smart & Biggar, which has continued to this day as a leading intellectual property firm in Canada.[1]