patentipc/E21B4-00

http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B4-00

Outgoing Links

Predicate	Object
title	Drives for drilling, used in the borehole
label	E21B4/00
sameAs	http://data.epo.org/linked-data/def/ipc/E21B4-00 http://www.wipo.int/classifications/ipc/ipcpub/?notion=scheme&symbol=E21B0004000000
broader	http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B

Incoming Links

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Total number of triples: 613.