| http://www.w3.org/ns/prov#value | - In some embodiments, a metal structure involving openings such as slots, preferably oriented longitudinally along its...http://www.google.com/patents/US6710600?utm_source=gb-gplus-sharePatent US6710600 - Drillpipe structures to accommodate downhole testingAdvanced Patent SearchPublication numberUS6710600 B1Publication typeGrantApplication numberUS 09/080,413Publication dateMar 23, 2004Filing dateM
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