E21B11/02 - CPC Classification Index

ClassID:

135274 ⎘

E21B11/02 - CPC Classification

Classification description:

Other drilling tools Boring rams

Recent Application in this class:

20230417110

2023-12-28

CONE PENETROMETER TESTING PROBE WITH INTEGRATED HAMMER BLOW MODULE

20190169936

2019-06-06

Mobile offshore drilling unit, a method of using such a unit and a system comprising such a unit

20170292335

2017-10-12

Device for clamping an element, carriage for a ground drilling device, ground drilling device, method for clamping an element and method for the manufacture of a device for clamping an element

20170254148

2017-09-07

Mobile offshore drilling unit, a method of using such a unit and a system comprising such a unit

20160356087

2016-12-08

Ram accelerator system with baffles

20110198125

2011-08-18

Percussive driving apparatus for environmental sampling or test device

20070048089

2007-03-01

Tool and method for installation of electrical conduit