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发明名称
Wanderndes Grubenausbauelement
摘要
申请公布号
DE1214182(B)
申请公布日期
1966.04.14
申请号
DE1960G028807
申请日期
1960.01.14
申请人
GULLICK LIMITED
发明人
SEDDON JEFFREY WILLIAM
分类号
E21D23/00
主分类号
E21D23/00
代理机构
代理人
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