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发明名称
摘要
申请公布号
SU361898(A1)
申请公布日期
1972.12.13
申请号
SU19711652785
申请日期
1971.04.20
申请人
发明人
分类号
B30B11/06;B30B15/02;(IPC1-7):B30B11/06
主分类号
B30B11/06
代理机构
代理人
主权项
地址
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