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Patents (Tables)
6 Months Ended
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of patents

The following is a schedule of estimated future patent amortization expenses by fiscal year as of December 31, 2018:

  

2019   $ 67,325  
2020     109,566  
2021     102,374  
2022     68,695  
2023     67,625  
Thereafter     347,459  
    $ 763,044