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发明名称
HOLE-DRIFTING ARRANGEMENT
摘要
申请公布号
SU622593(A1)
申请公布日期
1978.09.05
申请号
SU19762414344
申请日期
1976.10.25
申请人
NATAPOV LEONID M,SU;TUPITSYN ALEKSANDR S,SU
发明人
NATAPOV LEONID M,SU;TUPITSYN ALEKSANDR S,SU
分类号
B23D43/02;(IPC1-7):B23D43/02
主分类号
B23D43/02
代理机构
代理人
主权项
地址
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