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经营范围
发明名称
LEACHABLE CERAMIC CORE
摘要
申请公布号
US3576653(A)
申请公布日期
1971.04.27
申请号
USD3576653
申请日期
1967.10.20
申请人
GENERAL MOTORS CORP.
发明人
DONALD G. MILLER;RICHARD H. SINGLETON
分类号
B22C9/10;(IPC1-7):B28B7/34
主分类号
B22C9/10
代理机构
代理人
主权项
地址
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