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provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
Subject Item
isa:170808272
rdf:type
prov:Entity
prov:value
The apparatus according to claim 1, including in addition thereto, a casing scraper sub connected within said tubing string of pipe below said tubular sub.
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n5:com
Subject Item
isap:185685754
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isa:170808272