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经营范围
发明名称
Improvements in or relating to poppet valve assemblies
摘要
申请公布号
GB1139657(A)
申请公布日期
1969.01.08
申请号
GB19670032777
申请日期
1967.07.17
申请人
TRW INC.
发明人
GILES WILLIAM SAMUEL
分类号
F01L1/30
主分类号
F01L1/30
代理机构
代理人
主权项
地址
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