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经营范围
发明名称
Valve seat construction for engines and the like
摘要
申请公布号
US2017154(A)
申请公布日期
1935.10.15
申请号
US19340744237
申请日期
1934.09.15
申请人
CHARLES A. CRIQUI
发明人
LARKIN ELWOOD T.
分类号
F01L3/22
主分类号
F01L3/22
代理机构
代理人
主权项
地址
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