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发明名称
VIBRATING GRAB
摘要
申请公布号
SU1640330(A1)
申请公布日期
1991.04.07
申请号
SU19884620941
申请日期
1988.12.19
申请人
VNII GIDROMEKHANIZATSII, CAHôTAPHO-TEXHôÚECKôX ô CüE|ôAóÓHÕX CTPOôTEóÓHÕX PA¬OT
发明人
TROFIMOV VLADIMIR E,SU;KONDRASHOVA VERA A,SU;PEVZNER MOISEJ Z,SU
分类号
E21B7/24
主分类号
E21B7/24
代理机构
代理人
主权项
地址
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