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发明名称
Improvements in and relating to operating mechanism for valves
摘要
申请公布号
GB342581(A)
申请公布日期
1931.02.05
申请号
GB19300008347
申请日期
1930.03.14
申请人
SEMET-SOLVAY ENGINEERING CORPORATION
发明人
分类号
F16K31/122
主分类号
F16K31/122
代理机构
代理人
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地址
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