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INVENTORIES
 9 Months Ended
Sep. 30, 2020
INVENTORIES [Abstract]  
INVENTORIES
NOTE 4 – INVENTORIES
 
At September 30, 2020 and December 31, 2019, inventory consisted of the following:
 
 
  
September 30,
2020
    
December 31,
2019
  
Raw materials
  
$
27,254
    
$
15,105
  
Work in process
    
13,882
      
10,407
  
Finished goods
    
23,046
      
19,284
  
Total inventory
  
$
64,182
    
$
44,796
  
 
System shipments of first-tools to an existing or prospective customer, for which ownership does not transfer until customer acceptance, are classified as finished goods inventory and carried at cost until ownership is transferred.