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经营范围
发明名称
SINKING WELL
摘要
申请公布号
SU1183610(A1)
申请公布日期
1985.10.07
申请号
SU19813361568
申请日期
1981.10.19
申请人
DN INZH-STR INSTITUT
发明人
FEKLIN VALENTIN I,SU
分类号
E02D27/00;(IPC1-7):E02D27/00
主分类号
E02D27/00
代理机构
代理人
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地址
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