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发明名称
Mehrteiliges Stuetzelement fuer den Grubenausbau
摘要
申请公布号
DE1089349(B)
申请公布日期
1960.09.22
申请号
DE1957SC21936
申请日期
1957.04.15
申请人
HERMANN SCHWARZ KOMMANDITGESELLSCHAFT
发明人
分类号
E21D15/44;E21D15/51
主分类号
E21D15/44
代理机构
代理人
主权项
地址
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