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Inventories (Tables)
3 Months Ended
Sep. 30, 2021
Inventories  
Schedule of Inventories

Inventories are comprised as follows:

    

September 30, 2021

    

June 30, 2021

Work-in progress

$

784,595

$

829,962

Component parts

 

8,662,356

 

8,994,457

Finished goods

 

1,661,353

 

1,800,461

Reserve for obsolete and excess

 

 

inventories

 

(2,174,149)

 

(2,174,149)

$

8,934,155

$

9,450,731