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发明名称
摘要
申请公布号
SU554804(A3)
申请公布日期
1977.04.15
申请号
SU19731888908
申请日期
1973.03.02
申请人
发明人
分类号
B04C5/00;B04C5/08;B04C5/085;B04C5/103;C09B1/54;(IPC1-7):B04C5/08
主分类号
B04C5/00
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