| http://www.w3.org/ns/prov#value | - The catheter is an elongated member having a working head at its distal end and is sufficiently flexible and of small diameter to enable it to be located within the body of the being with...http://www.google.com/patents/US4749376?utm_source=gb-gplus-sharePatent US4749376 - Reciprocating working head catheterAdvanced Patent SearchPublication numberUS4749376 APublication typeGrantApplication numberU
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