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发明名称
Wanderndes Ausbauelement fuer untertaegige Grubenbetriebe
摘要
申请公布号
DE1206832(B)
申请公布日期
1965.12.16
申请号
DE1965G042819
申请日期
1965.02.11
申请人
GULLICK LIMITED
发明人
ALLEN ARCHELAIUS DAWSON
分类号
E21D23/00
主分类号
E21D23/00
代理机构
代理人
主权项
地址
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