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发明名称
摘要
申请公布号
DE2931587(C2)
申请公布日期
1982.06.09
申请号
DE19792931587
申请日期
1979.08.03
申请人
CHEMISCHE FABRIK KALK GMBH, 5000 KOELN, DE
发明人
LEWER, HANS, 5802 WETTER, DE
分类号
E21F5/02;E21F5/20;F42D5/00;(IPC1-7):E21F5/20;F42D3/04
主分类号
E21F5/02
代理机构
代理人
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地址
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