patent/US-4972780-A

Predicate	Subject
isCitedBy	http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2857290-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4015307-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4298268-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3309993-A

Showing number of triples: 1 to 4 of 4.