| http://www.w3.org/ns/prov#value | - Patent US7226453 - Instrument for inserting, adjusting and removing pedicle screws and other ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsAn instrument for inserting, adjusting and engaging an implant, such as a polyaxial screw of a spinal fixation system, includes at least one retratractable tab for engaging a corresponding recess
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