E21CLevel 3

MINING OR QUARRYING

**Definition:** This place covers:

Methods or apparatus specific to mining or quarrying.

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E21C 2100/00Modeling, simulating or designing mining operations

E21C 2200/00Mining robots

E21C 25/00Cutting, Slitting, Dislodging

E21C 27/00Machines which completely free the mineral from the seam

E21C 29/00Propulsion of machines for slitting or completely freeing the mineral from the seam

E21C 31/00Driving means incorporated in machines for slitting or completely freeing the mineral from the seam

E21C 33/00Trucks or other devices for transporting machines for slitting or completely freeing the mineral from the seam

E21C 35/00Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups

E21C 37/00Other methods or devices for dislodging with or without loading

E21C 39/00Devices for testing

E21C 41/00Methods of mining or quarrying

E21C 45/00Methods of hydraulic mining

E21C 47/00Machines for obtaining or the removal of materials in open-pit mines

E21C 49/00Obtaining peat

E21C 50/00Obtaining minerals from underwater, not otherwise provided for

E21C 51/00Apparatus for, or methods of, winning materials from extraterrestrial sources

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