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经营范围
发明名称
Improvements in or relating to steam and water valves
摘要
申请公布号
GB561385(A)
申请公布日期
1944.05.17
申请号
GB19420017725
申请日期
1942.12.14
申请人
WILLIAM KENNETH RATCLIFF
发明人
分类号
F16K27/02
主分类号
F16K27/02
代理机构
代理人
主权项
地址
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