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NOTE 4 — Inventories (Tables)
9 Months Ended
Sep. 30, 2024
Inventory Disclosure [Abstract]  
Inventories
         
    September 30,   December 31,
    2024   2023
Raw materials and sub-assemblies   $   5,861,933   $   5,839,176
Finished goods      384,423   500,814
Inventory reserves   (995,943)   (930,943)
Inventory, net   $   5,250,413   $   5,409,047