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经营范围
发明名称
Improvements relating to diaphragm valves
摘要
申请公布号
GB808074(A)
申请公布日期
1959.01.28
申请号
GB19540003948
申请日期
1954.02.10
申请人
LESLIE SUMNER
发明人
分类号
F16K7/12
主分类号
F16K7/12
代理机构
代理人
主权项
地址
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