| http://www.w3.org/ns/prov#value | - wo second anti-extrusion rings and said second ring of elastomeric material, so that as said third retainer band is compressed axially toward said one retainer band said second anti-extrusion rings tend to de-bevel against said axially facing shoulder means on said third and other retainer bands; the third annular retainer band having surface means thereon oriented to receive an applied mechanical
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