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发明名称
DREHWEICHE
摘要
申请公布号
AT334972(B)
申请公布日期
1977.02.10
申请号
AT19740001201
申请日期
1974.02.14
申请人
VON ROLL AG.
发明人
分类号
E01B7/00;E01B25/26;(IPC1-7):E01B25/00
主分类号
E01B7/00
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代理人
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