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发明名称
POPPET VALVE
摘要
申请公布号
CA422726(A)
申请公布日期
1944.09.19
申请号
CAD422726
申请日期
申请人
AERO ENGINES LIMITED
发明人
GEORGE FREDERIC HALLIDAY
分类号
主分类号
代理机构
代理人
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地址
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