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经营范围
发明名称
Improvements in single beat stop valves
摘要
申请公布号
GB759178(A)
申请公布日期
1956.10.17
申请号
GB19530032242
申请日期
1953.11.20
申请人
DEWRANCE & CO., LIMITED
发明人
分类号
F16K1/34
主分类号
F16K1/34
代理机构
代理人
主权项
地址
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