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5. Intangible Assets: Schedule of Finite-Lived Intangible Assets (Details) - USD ($)
6 Months Ended
Feb. 28, 2019
Feb. 28, 2018
Details    
Finite-Lived Patents, Gross $ 43,655 $ 43,655
Amortization of Intangible Assets (40,336) (40,065)
Intangible Assets, Current $ 3,319 $ 3,590