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Significant Accounting Policies (Tables)
3 Months Ended
Oct. 31, 2019
Accounting Policies [Abstract]  
Schedule of Inventories

Inventories consist of the following:

 

    October 31, 2019     July 31, 2019  
Raw materials   $ 3,000     $ 30,000  
Finished goods     159,000       147,000  
    $ 162,000     $ 177,000