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3. Inventories (Tables)
9 Months Ended
Sep. 30, 2013
Inventories Tables  
Inventories consist

 

Inventories consist of :  

September 30,

2013

   

December 31,

2012

 
Raw materials   $ 628,778     $ 720,113  
Work in process     134,264       ––  
Finished goods (including $339,900 and $489,400 held by customers at September 30, 2013 and December 31, 2012, respectively)     1,785,307       1,910,273  
Total inventories   $ 2,548,349     $ 2,630,386