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发明名称
LEAK DETECTOR
摘要
申请公布号
JPH04122834(A)
申请公布日期
1992.04.23
申请号
JP19900242379
申请日期
1990.09.14
申请人
HITACHI LTD
发明人
YAMADA IZUMI
分类号
G01M3/24
主分类号
G01M3/24
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