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4. Property and Equipment (Tables)
3 Months Ended
Mar. 31, 2019
Property, Plant and Equipment [Abstract]  
Property and equipment
   March 31,
2019
(unaudited)
   December 31,
2018
 
         
Office equipment  $30,000   $30,000 
Furniture and fixtures   5,000    5,000 
Testing Equipment   37,000    37,000 
Leasehold Improvements   25,000    25,000 
Subtotal   97,000    97,000 
Less accumulated depreciation   (74,000)   (73,000)
Total  $23,000   $24,000