A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
A47J42/00—Coffee mills; Spice mills
A47J42/32—Coffee mills; Spice mills with other grinding or pulverising members
A47J42/34—Coffee mills; Spice mills with other grinding or pulverising members hand driven
B—PERFORMING OPERATIONS; TRANSPORTING
B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
B02C4/00—Crushing or disintegrating by roller mills
B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
B02C4/18—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a bar
B02C4/20—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a bar wherein the roller is corrugated or toothed