| http://www.w3.org/ns/prov#value | - The osteosynthesis device of any one of claims 7, 8, 9 and 11, wherein said opening of said boss is a channel in said boss open on said arched outer surface for receiving said second rod, said means for locking said first rod comprising tappings on the edges of said channel and a bolt adapted to be screwed into said tappings.
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