Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
E21B 1/02

Surface drives for drop hammers , e.g. with a cable

Introduced: September 1968

Title

Titles differ between systems:

IPC: Surface drives for drop hammers, e.g. with a cable

CPC: Surface drives for drop hammers , e.g. with a cable

Full Title

Full titles differ between systems:

IPC:

Percussion drilling > Surface drives for drop hammers, e.g. with a cable

CPC:

Percussion drilling > Surface drives for drop hammers , e.g. with a cable

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

Child Classifications

Navigate with arrow keys, Enter to open

  • E21B 1/04 Devices for reversing the movement of the rod or cable at the surface IPC+CPC Available in IPC and CPC