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发明名称
Mehrteilige Ohrenlasche fuer den Grubenausbau
摘要
申请公布号
DE1118119(B)
申请公布日期
1961.11.30
申请号
DE1960SC28632
申请日期
1960.10.18
申请人
HERMANN SCHWARZ KOMMANDITGESELLSCHAFT
发明人
分类号
E21D11/22
主分类号
E21D11/22
代理机构
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