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经营范围
发明名称
Improvements in valves
摘要
申请公布号
GB617082(A)
申请公布日期
1949.02.01
申请号
GB19460004114
申请日期
1946.02.09
申请人
MARTIN MOULET & CIE
发明人
分类号
F16K31/10
主分类号
F16K31/10
代理机构
代理人
主权项
地址
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