| http://www.w3.org/ns/prov#value | - The centering means may comprise angledcentering surfaces that locate on the article as the ring compressing assembly is positioned at the assembly position to move the article in a manner to center the bore thereof with the mandrel.The present invention also contemplates a mandrel and retainer ring combination including a mandrel having an elongate, lug-retaining groove means with opposing spaced
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