E21C3/00 - CPC Classification Index

ClassID:

135748 ⎘

E21C3/00 - CPC Classification

Classification description:

Sub-classes:

E21C3/02 » Machines in which the tool is connected to an impulse member 0
E21C3/04 » Hammer drilling machines in which the tool is hit by an impulse member 4
E21C3/06 » Means for driving the impulse member 0

Recent Application in this class:

20230243259

Microwave-mechanical fluidization mining system and mining method for metal mines

20170190540

Underground mining machine