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经营范围
发明名称
Improvements in valves
摘要
申请公布号
GB364035(A)
申请公布日期
1931.12.28
申请号
GB19300029017
申请日期
1930.09.27
申请人
GORDON BUTLER ILES
发明人
分类号
F16K51/02
主分类号
F16K51/02
代理机构
代理人
主权项
地址
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