| http://www.w3.org/ns/prov#value | - The system of claim 20 further comprising a ridge including a biasing surface extending inwardly and arcuately of the female portion of the body and provided between each slot and adjacent recess, the biasing surface configured to urge the finger inwardly during rotation of the bone cement container and the body, wherein the finger relaxes outwardly upon being received over the biasing surface and
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