with the mutually rotating surfaces facing each other

Full Title

Mixers with rotary stirring devices in fixed receptacles; Kneaders > Mixers with rotor-rotor system, e.g. with intermeshing teeth > with the mutually rotating surfaces facing each other

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Subclass:

MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING