characterised by a multi-layered structure

Full Title

Lapping machines or devices; Accessories > Lapping tools > Lapping pads for working plane surfaces > characterised by a multi-layered structure

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

GRINDING; POLISHING

Subclass:

MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS