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Inventories
12 Months Ended
Dec. 31, 2019
INVENTORIES [Abstract]  
Inventory Disclosure INVENTORIES
Inventory consisted of the following at December 31:
 
2019
 
2018
Raw materials and parts
$
129,294

 
$
122,945

Work-in-progress
43,202

 
47,098

Finished goods
101,789

 
98,778

Total inventory
$
274,285

 
$
268,821