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发明名称
APPARATUS FOR MEASURING WELL CROOCKING ANGLE
摘要
申请公布号
SU1456547(A1)
申请公布日期
1989.02.07
申请号
SU19874256258
申请日期
1987.06.03
申请人
N-PROIZV OB "SIBTSVETMETAVTOMATIKA"
发明人
TSAREGORODTSEV MIKHAIL E,SU;YANKEVICH VALENTIN V,SU
分类号
E21B47/0228;E21B47/0236;G01B7/30
主分类号
E21B47/0228
代理机构
代理人
主权项
地址
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