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3. PATENTS (Tables)
12 Months Ended
Mar. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of patents
   March 31, 2017   March 31, 2016 
Patents  $211,645   $211,645 
Accumulated amortization   (126,649)   (117,484)
   $84,996   $94,161