发明名称 |
Extendable measuring device |
摘要 |
<p>The instrument to measure the alignment and position of a drilling rod (11) in a drilling into the ground (13) has a probe (21) with a number of pitch sensors (22) along its length. The probe is pushed through by the number of sensors along its length.</p> |
申请公布号 |
EP2213833(A3) |
申请公布日期 |
2011.12.07 |
申请号 |
EP20100151744 |
申请日期 |
2010.01.27 |
申请人 |
KELLER HOLDING GMBH |
发明人 |
KNITSCH, HENRY;TRUNK, ULRICH DR. |
分类号 |
E21B47/022 |
主分类号 |
E21B47/022 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|