<http://webisa.webdatacommons.org/123962549>	<http://www.w3.org/ns/prov#value>	"Patent US4037422 - Articulated jet sled - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsAn apparatus for entrenching submerged elongate structures, such as a pipeline, within the bed of a body of water." .
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