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发明名称
摘要
申请公布号
DE2030192(A1)
申请公布日期
1971.01.28
申请号
DE19702030192
申请日期
1970.06.19
申请人
发明人
分类号
G02B5/04;B24B13/00;B29D11/00;G02B3/00;G02B5/10;(IPC1-7):G02B5/00
主分类号
G02B5/04
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