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发明名称
Means for providing a restricted passage in a fluid conduit
摘要
申请公布号
US2658528(A)
申请公布日期
1953.11.10
申请号
US19490109878
申请日期
1949.08.12
申请人
JOSEPH LUCAS LIMITED
发明人
IFIELD RICHARD JOSEPH
分类号
F16L55/027
主分类号
F16L55/027
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