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发明名称
APPARATUS AND PROCESS FOR FORMING DISPOSABLE SPRUE FOR CASTING
摘要
申请公布号
CA1017529(A)
申请公布日期
1977.09.20
申请号
CA19750242215
申请日期
1975.12.18
申请人
VESTSHELL INC.
发明人
VALENTA, JOSEPH
分类号
B22C11/00
主分类号
B22C11/00
代理机构
代理人
主权项
地址
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