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经营范围
发明名称
PIPE COUPLINGS
摘要
申请公布号
GB1562184(A)
申请公布日期
1980.03.05
申请号
GB19750033683
申请日期
1976.11.10
申请人
WRIGHT R J;GRACE J C
发明人
分类号
F16L41/08;(IPC1-7):F16L41/04
主分类号
F16L41/08
代理机构
代理人
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地址
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