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经营范围
发明名称
COUPLING PIPES
摘要
申请公布号
GB1595225(A)
申请公布日期
1981.08.12
申请号
GB19770004727
申请日期
1977.02.04
申请人
HEPWORTH IRON CO LTD
发明人
分类号
F16L21/02;B29C33/00;B29C45/14;B29C70/76;F16L21/00;F16L47/06;H02G9/06;(IPC1-7):F16L21/02;B29D23/02
主分类号
F16L21/02
代理机构
代理人
主权项
地址
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