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发明名称
FLASK PATTERN SET
摘要
申请公布号
SU1031636(A1)
申请公布日期
1983.07.30
申请号
SU19813325428
申请日期
1981.08.06
申请人
KRIVOROTOV ALEKSANDR A,SU
发明人
KRIVOROTOV ALEKSANDR A,SU
分类号
B22C21/00;B22C7/04;(IPC1-7):B22C21/00
主分类号
B22C21/00
代理机构
代理人
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