patent/US-3422247-A

Predicate	Subject
isCitedBy	http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-1189735-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3356830-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2609778-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-693197-A

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