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经营范围
发明名称
Электроперфоратор
摘要
申请公布号
SU111576(A1)
申请公布日期
1956.11.30
申请号
SU19480362728
申请日期
1948.04.17
申请人
KUZMIN V.M.
发明人
KUZMIN V.M.
分类号
E21B1/14;B25D11/08
主分类号
E21B1/14
代理机构
代理人
主权项
地址
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