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7. PATENTS (Tables)
6 Months Ended
Jun. 30, 2016
Patents Tables  
Patents
   

June 30, 2016

Cost

   

Accumulated

Amortization

   

June 30, 2016

Net

 
Patents   $ 205,373     $ 105,436     $ 99,937  

 

   

December 31, 2015

Cost

   

Accumulated

Amortization

   

December 31, 2015

Net

 
Patents   $ 191,698     $ 91,075     $ 100,623  
Estimated depreciation expense
2016   $ 15,247  
2017     15,247  
2018     15,247  
2019     15,247  
2020     15,247