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发明名称
Vorrichtung und Verfahren zum mechanischen Abbau von Kohle in Steilfloezen
摘要
申请公布号
DE1078513(B)
申请公布日期
1960.03.31
申请号
DE1956C014159
申请日期
1956.12.24
申请人
FRANZ CLOUTH RHEINISCHE GUMMIWARENFABRIK AKTIENGESELLSCHAFT;GELSENKIRCHENER BERGWERKS AKTIEN-GESELLSCHAFT
发明人
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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