Looking on the internet deeply has found these results:
patent specification is the most popular phrase on the web.
                    specification of a patent1277,000 results on the web  | 
                    
                    patent specification1828,000 results on the web More popular!  | 
                    
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                    Some examples and use cases from the internet: | 
                    
                    Some examples and use cases from the internet: | 
                    
                    
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