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发明名称
Nachgiebiger Grubenausbau
摘要
申请公布号
DE1149315(B)
申请公布日期
1963.05.30
申请号
DE1957A027988
申请日期
1957.02.02
申请人
BETEILIGUNGS- UND PATENTVERWALTUNGSGESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
发明人
STROH WILHELM
分类号
E21D11/18;E21D15/22
主分类号
E21D11/18
代理机构
代理人
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地址
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