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发明名称
DRIVEN-IN SOIL SAMPLER
摘要
申请公布号
SU1250648(A1)
申请公布日期
1986.08.15
申请号
SU19853860549
申请日期
1985.03.01
申请人
GOJ VLADIMIR L
发明人
GOJ VLADIMIR L,SU
分类号
E21B49/02
主分类号
E21B49/02
代理机构
代理人
主权项
地址
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