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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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  • In pipe suspension mechanism, a pipe gripping spider assembly comprising a body adapted to be supportedabove a well bore and having a vertical passageway therethrough for the reception of a pipe extending into the bore, radially movable pipe gripping members in said body, and means for simultaneously moving said members into and out of gripping engagement with the pipe, said means including links
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