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3. PATENTS (Tables)
12 Months Ended
Mar. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of patents

Patents, net consist of the following:

 

    March 31, 2020     March 31, 2019  
Patents   $ 211,645     $ 211,645  
Accumulated amortization     (154,141 )     (144,977 )
    $ 57,504     $ 66,668