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发明名称
Art of making a tappet
摘要
申请公布号
US2988805(A)
申请公布日期
1961.06.20
申请号
US19540446497
申请日期
1954.07.29
申请人
THOMPSON EARL A
发明人
THOMPSON EARL A.
分类号
B21D17/04
主分类号
B21D17/04
代理机构
代理人
主权项
地址
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