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Inventories (Tables)
3 Months Ended
May 31, 2022
Inventory Disclosure [Abstract]  
Schedule of inventories
   May 31,
2022
   February 28,
2022
 
Raw materials  $158,256   $129,836 
Work-in-process   5,421    14,421 
Finished goods   
-
    
-
 
Total inventory  $163,677   $144,257