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Outgoing Links

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level 9^^<http://www.w3.org/2001/XMLSchema#integer>
symbol D21H21/143
modified 2013-01-01-04:00^^<http://www.w3.org/2001/XMLSchema#date>
title Agents preventing ageing of paper, e.g. radiation absorbing substances
type http://data.epo.org/linked-data/def/cpc/SubGroup
broader http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H21-14

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