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NOTE 4 — Inventories (Tables)
3 Months Ended
Sep. 30, 2022
Inventory Disclosure [Abstract]  
Inventories
         
    September 30,   December 31,
    2022   2021
Raw materials and sub-assemblies   $ 6,429,736     $ 5,757,869  
Finished goods     601,134       277,598  
Inventory reserves     (880,943 )     (880,943 )
Inventory, net   $ 6,149,927   $ 5,154,524