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发明名称
Устройство для очистной выемки ископаемых
摘要
申请公布号
SU79738(A1)
申请公布日期
1948.11.30
申请号
SU19460349180
申请日期
1946.10.17
申请人
VARGANOV V.A.
发明人
VARGANOV V.A.
分类号
E21D19/02
主分类号
E21D19/02
代理机构
代理人
主权项
地址
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