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经营范围
发明名称
Improvements in or relating to gate valves
摘要
申请公布号
GB781383(A)
申请公布日期
1957.08.21
申请号
GB19540033066
申请日期
1954.11.15
申请人
THE BRYAN DONKIN COMPANY LIMITED
发明人
分类号
F16K3/02
主分类号
F16K3/02
代理机构
代理人
主权项
地址
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