发明名称 Probe for use in geological surveys
摘要 A probe construction for use in geological surveys designed to extract earth samples at a predetermined depth. The probe consists essentially of an elongated metal body with a hollow core, the longitudinal axis of the core being at approximately 5 DEG to the longitudinal axis of the metal body. A side outlet is provided along substantially the length of the metal body. The probe is adapted for engagement with the drive rod of a hammer mill or the like machine.
申请公布号 US4130170(A) 申请公布日期 1978.12.19
申请号 US19770766824 申请日期 1977.02.08
申请人 BARYMIN EXPLORATIONS LIMITED 发明人 HOLMAN, RONALD H. C.
分类号 E02D1/04;E21B7/26;E21B10/02;E21B12/04;E21B25/00;(IPC1-7):E21B9/20 主分类号 E02D1/04
代理机构 代理人
主权项
地址