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发明名称
Separable die
摘要
申请公布号
US1837452(A)
申请公布日期
1931.12.22
申请号
US19300442351
申请日期
1930.04.07
申请人
AURORA METAL CO.
发明人
MAY JOHN LE
分类号
B22C9/06
主分类号
B22C9/06
代理机构
代理人
主权项
地址
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