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Priority to JP2068788UpriorityCriticalpatent/JPH0646878Y2/ja
Publication of JPH01132598UpublicationCriticalpatent/JPH01132598U/ja
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Publication of JPH0646878Y2publicationCriticalpatent/JPH0646878Y2/ja
Study to develop improved methods to detect leakage in fluid systems, phase 2(Ultrasonic contact sensor for detecting leakage in fluid systems under cryogenic conditions)