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发明名称
Устройство для автоматической подачи перфоратора
摘要
申请公布号
SU137087(A1)
申请公布日期
1960.11.30
申请号
SU19600676155
申请日期
1960.07.02
申请人
发明人
YUSHKO S.P.
分类号
E21B44/02;E21B15/00;E21B19/086
主分类号
E21B44/02
代理机构
代理人
主权项
地址
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