Matches in DBpedia 2014 for { ?s ?p <http://dbpedia.org/resource/Category:Patent_classifications> . }
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- Cooperative_Patent_Classification subject Category:Patent_classifications.
- European_Classification subject Category:Patent_classifications.
- European_Convention_on_the_International_Classification_of_Patents_for_Invention subject Category:Patent_classifications.
- F-term_(patent_law) subject Category:Patent_classifications.
- International_Patent_Classification subject Category:Patent_classifications.
- Patent_classification subject Category:Patent_classifications.
- Strasbourg_Agreement_Concerning_the_International_Patent_Classification subject Category:Patent_classifications.
- United_States_Patent_Classification subject Category:Patent_classifications.