EP2505764
Downhole driving unit having a spring member for assembling a hydraulic motor housing
:
EP einkaleyfi: Þýðing ekki lögð inn:
30.3.2011:
1.1.2014:
11160502.8
:
29.3.2031
:
Downhole driving unit having a spring member for assembling a hydraulic motor housing
30.3.2011
1.1.2014
:
Welltec A/S:
Gydevang 25, 3450, Allerød, DK
:
Hallundbæk, Jørgen:
Græsted, DK
:
E21B 23/00, B60K 17/14