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发明名称
Verfahren zum Regeln der Vorschubgeschwindigkeit einer Gewinnungseinrichtung
摘要
申请公布号
DE960808(C)
申请公布日期
1957.03.28
申请号
DE1952C006888
申请日期
1952.12.28
申请人
CARBO-STREBBAU-GESELLSCHAFT DR.-ING. VON HIPPEL & CO.
发明人
HIPPEL DR.-ING. HANS JOACHIM VON
分类号
E21C31/06
主分类号
E21C31/06
代理机构
代理人
主权项
地址
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