E21B10/246 - CPC Classification Index

ClassID:

135220 ⎘

E21B10/246 - CPC Classification

Classification description:

Drill bits; Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details with pumping means for feeding lubricant

Recent Application in this class:

20180051519

2018-02-22

Cutter for boring head

20170241307

2017-08-24

DEVICE FOR SUPPLYING LUBRICANT TO A LUBRICATION POINT IN A MACHINE

20140238742

2014-08-28

Device for supplying lubricant to a lubrication point in a machine

20050183888

2005-08-25

Hydrodynamic pump passages for rolling cone drill bit

20050045387

2005-03-03

Lubricant pump and cone movement dampener

16748386

2022-02-22

Grease system for high pressure plug valves