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发明名称
CORE SPADE DRILL
摘要
申请公布号
SU1673308(A1)
申请公布日期
1991.08.30
申请号
SU19894659698
申请日期
1989.03.09
申请人
LE MEKHANICHESKIJ I IM.MARSHALA SOVETSKOGO SOYUZA USTINOVA D.F.
发明人
BABANOV ALEKSEJ N,SU;YAKOVLEV PAVEL D,SU
分类号
B23B51/06
主分类号
B23B51/06
代理机构
代理人
主权项
地址
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