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发明名称
Improvements in packing means for swivel pipe joints
摘要
申请公布号
GB659474(A)
申请公布日期
1951.10.24
申请号
GB19490023089
申请日期
1949.09.06
申请人
WHEATON BRASS WORKS
发明人
分类号
F16L27/08
主分类号
F16L27/08
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