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An Entity of Type : prov:Entity, within Data Space : webisadb.webdatacommons.org associated with source dataset(s)

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  • A well formation testing and treating tool including an operating pipe, a housing thereon. a pair of spaced packers on said housing. 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 stem
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