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摘要
申请公布号
NL7015930(A)
申请公布日期
1971.05.05
申请号
NL19700015930
申请日期
1970.10.30
申请人
发明人
分类号
B08B9/043;F16L55/1645;G01M3/00;G01M3/28;(IPC1-7):F16L55/18
主分类号
B08B9/043
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