v3.10.0.1

Intangible Assets - Net (Details) - USD ($) | Nov. 30, 2018 | Nov. 30, 2017
--- | --- | ---
Schedule of Intangible Assets |  |
Patents and trademarks | $ 583,327 | $ 578,937
Less: Accumulated amortization | 146,753 | 146,617
Intangible Assets - Net | $ 436,574 | $ 432,320

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