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发明名称
Means for forming molds
摘要
申请公布号
US2660768(A)
申请公布日期
1953.12.01
申请号
US19490130721
申请日期
1949.12.02
申请人
BARR ROY E
发明人
BARR ROY E.
分类号
B22C9/04;B22D25/02
主分类号
B22C9/04
代理机构
代理人
主权项
地址
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