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Note 2 - Inventories: Schedule of Inventory, Current (Details) - USD ($)
Mar. 31, 2019
Dec. 31, 2018
Details    
Inventory, Parts and Components, Net of Reserves $ 130,471 $ 116,843
Inventory, Work in Process, Gross 350,327 379,987
Inventory, Finished Goods, Gross 289,749 325,989
Inventories $ 770,547 $ 822,819