Predicate |
Object |
title |
Nitrogen compounds |
label |
B01D53/54 |
sameAs |
http://data.epo.org/linked-data/def/ipc/B01D53-54 http://www.wipo.int/classifications/ipc/ipcpub/?notion=scheme&symbol=B01D0053540000 |
broader |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-46 |