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经营范围
发明名称
Improvements in, or relating to, valves
摘要
申请公布号
GB704561(A)
申请公布日期
1954.02.24
申请号
GB19510016500
申请日期
1951.07.12
申请人
WALKER, CROSWELLER & COMPANY LIMITED
发明人
BARKER CLIFFORD LEWIS
分类号
F16K11/07
主分类号
F16K11/07
代理机构
代理人
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地址
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