Com-Adv Devices Inc. was incorporated in the Province of Newfoundland and Labrador, Canada in 2003.  We are the inventor, manufacturer, and distributor of Footworker-Pro line of products for racquet sport training and the DOE-Golfer a teaching apparatus for experimental design.  The company is based in historic St. John’s, Newfoundland.  The company’s President is Dr. Leonard Lye, the inventor of the products […]

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