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专利名称：Pipe testing apparatus发明人：Sandy Ritchie,John Horn申请号：US09673405申请日：20001228公开号：US065812B1公开日：20030624
专利附图：
摘要：A pipe testing apparatus comprising an elongate tester body having sealingmeans and actuator means to deform said sealing means on activation. The apparatus isfurther provided with means to bias actuator means axially away from the sealing meanson deactivation of said actuator means. The apparatus is typically used to test the
integrity of pipelines at specific points, for example joints or welds.
申请人：HEDLEY PURVIS LIMITED
代理机构：Woodard, Emhardt, Moriarty, McNett & Henry LLP
代理人：Clifford W. Browning
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