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<http://webisa.webdatacommons.org/114581669>	<http://www.w3.org/ns/prov#value>	"Patent US5194859 - Apparatus and method for positioning a tool in a deviated section of a borehole - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsApparatus and method for positioning a tool, such as a surveying instrument, in the deviated section of a borehole includes a flexible rod and a positioning assembly." .