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发明名称
Mold and method of making same
摘要
申请公布号
US2827678(A)
申请公布日期
1958.03.25
申请号
US19540453028
申请日期
1954.08.30
申请人
OSBRINK RAYMOND H
发明人
OSBRINK RAYMOND H.
分类号
B22C11/00
主分类号
B22C11/00
代理机构
代理人
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