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INSTRUMENTO PARA MEDICAO DA DIRECAO DE UM FURO DE SONDAGEM E PROCESSO DE LEVANTAMENTO TOPOGRAFICO DE UM FURO DE SONDAGEM

申请公布号:BR7708485(A)

申请号:BR19770008485

申请日期:1977.12.20

申请公布日期:1979.07.10

申请人:
RUSSELL A;RUSSEL M

发明人:RUSSELL A;RUSSEL M

分类号:G01C19/16;(IPC1-7):G01C19/16

主分类号:G01C19/16

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