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发明名称
Improvements relating to double seated poppet valves
摘要
申请公布号
GB411536(A)
申请公布日期
1934.06.11
申请号
GB19320035049
申请日期
1932.12.10
申请人
HERMAN LINDARS
发明人
分类号
F16K1/44
主分类号
F16K1/44
代理机构
代理人
主权项
地址
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