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发明名称
VERY-LOW AND LOW-FREQUENCY PRECISION PHASE CALIBRATOR
摘要
申请公布号
GB1217545(A)
申请公布日期
1970.12.31
申请号
GB19680049830
申请日期
1968.10.21
申请人
VSESOJUZNY NAUCHNO- ISSLEDOVATELSKY INSTITUT METROLOGII IM. D. I. MENDELEEVA
发明人
SVYATOSLAV ANATOLIEVICH KRAVCHENKO;EVGENY DMITRIEVICH KOLTIK
分类号
E21B41/00;G01R25/00;H03B21/04;H03B27/00;H03H11/16
主分类号
E21B41/00
代理机构
代理人
主权项
地址
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