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经营范围
发明名称
Poppet valve
摘要
申请公布号
US2658492(A)
申请公布日期
1953.11.10
申请号
US19520316830
申请日期
1952.10.25
申请人
TAYLOR WILLIAM H
发明人
TAYLOR WILLIAM H.
分类号
F01L1/20
主分类号
F01L1/20
代理机构
代理人
主权项
地址
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