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发明名称
摘要
申请公布号
SU547348(A1)
申请公布日期
1977.02.25
申请号
SU19742091507
申请日期
1974.12.30
申请人
发明人
分类号
B28B1/08;(IPC1-7):B28B1/08
主分类号
B28B1/08
代理机构
代理人
主权项
地址
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