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经营范围
发明名称
Improvements in or relating to poppet valves
摘要
申请公布号
GB432337(A)
申请公布日期
1935.07.24
申请号
GB19340034063
申请日期
1934.11.27
申请人
WILCOX-RICH CORPORATION
发明人
分类号
F01L3/02
主分类号
F01L3/02
代理机构
代理人
主权项
地址
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