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发明名称
Mit Pressen ausgerüsteter Vortriebsschild
摘要
申请公布号
AT269940(B)
申请公布日期
1969.04.10
申请号
AT19660002244
申请日期
1966.03.09
申请人
GRUEN & BILFINGER AKTIENGESELLSCHAFT
发明人
分类号
E21D9/06;E21D9/08;E21D11/40
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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