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n5google.
isaphttp://webisa.webdatacommons.org/prov/
isahttp://webisa.webdatacommons.org/
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provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
Subject Item
isa:143567481
rdf:type
prov:Entity
prov:value
A well formation testing and treating tool including an operating pipe, a housing thereon, a pair of spaced packers on said\houslng, a stem slidable in said housing, spring means normally holding said stem in an elevated position, a sliding connection between said pipe and housing so that said pipe may be lowered into the housing to move said stem, and a plurality of series of openings in said ste
prov:wasQuotedFrom
n5:com
Subject Item
isap:177774332
prov:wasDerivedFrom
isa:143567481