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经营范围
发明名称
Improvements in or relating to pipe or rod joints or couplings
摘要
申请公布号
GB650920(A)
申请公布日期
1951.03.07
申请号
GB19480029805
申请日期
1948.11.16
申请人
BELLING AND LEE LIMITED
发明人
CROCKER ALLEN ARTHUR
分类号
F16B7/04;H01Q1/12
主分类号
F16B7/04
代理机构
代理人
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