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发明名称
Пружинный перфоратор
摘要
申请公布号
SU84009(A1)
申请公布日期
1949.11.30
申请号
SU19410300128
申请日期
1941.06.29
申请人
KILCHEVSKIJ B.V.;KILCHEVSKIJ G.V.
发明人
KILCHEVSKIJ B.V.;KILCHEVSKIJ G.V.
分类号
E21B1/18;B25D11/04
主分类号
E21B1/18
代理机构
代理人
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地址
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