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经营范围
发明名称
Improved pipe coupling
摘要
申请公布号
GB914923(A)
申请公布日期
1963.01.09
申请号
GB19610019523
申请日期
1961.05.30
申请人
FREDERICK RUSSELL DUFFIELD
发明人
分类号
F16L19/065;F16L19/08
主分类号
F16L19/065
代理机构
代理人
主权项
地址
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