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经营范围
发明名称
Improvements in or relating to valves for steam engines
摘要
申请公布号
GB512890(A)
申请公布日期
1939.09.28
申请号
GB19380007437
申请日期
1938.03.10
申请人
GERALD PURCELL FITZ-GERALD
发明人
分类号
F01L15/10
主分类号
F01L15/10
代理机构
代理人
主权项
地址
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