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发明名称
Apparatus for producing shell molds
摘要
申请公布号
US2746104(A)
申请公布日期
1956.05.22
申请号
US19520316626
申请日期
1952.10.24
申请人
VALYI EMERY I
发明人
VALYI EMERY I.
分类号
B22C23/00
主分类号
B22C23/00
代理机构
代理人
主权项
地址
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