involving liquid or pneumatic means

Full Title

Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation > involving liquid or pneumatic means

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