IPC Classification

Class code (prefix) Descriptions Number of results
B21H 1/00 Making articles shaped as bodies of revolution
B21H 1/02 Making articles shaped as bodies of revolution disc wheels
B21H 1/04 Making articles shaped as bodies of revolution disc wheels with rim, e.g. railway wheels
B21H 1/06 Making articles shaped as bodies of revolution rings of restricted axial length
B21H 1/08 Making articles shaped as bodies of revolution rings of restricted axial length railway wheel rims
B21H 1/10 Making articles shaped as bodies of revolution rings of restricted axial length rims for pneumatic tyres
B21H 1/12 Making articles shaped as bodies of revolution rings of restricted axial length rings for ball or roller bearings
B21H 1/14 Making articles shaped as bodies of revolution balls, rollers, cone rollers, or like bodies
B21H 1/16 Making articles shaped as bodies of revolution balls, rollers, cone rollers, or like bodies for bearings
B21H 1/18 Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely
B21H 1/20 Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely rolled longitudinally
B21H 1/22 Making articles shaped as bodies of revolution characterised by use of rolls having circumferentially varying profile
B21H 3/00 Making helical bodies or bodies having parts of helical shape
B21H 3/02 Making helical bodies or bodies having parts of helical shape external screw-threads
B21H 3/04 Making by means of profiled rolls
B21H 3/06 Making by means of profiled members other than rolls, e.g. jaws, moved longitudinally or curvilinearly with respect to each other
B21H 3/08 Making helical bodies or bodies having parts of helical shape internal screw-threads
B21H 3/10 Making helical bodies or bodies having parts of helical shape twist-drills or screw-taps
B21H 3/12 Making helical bodies or bodies having parts of helical shape articles with helicoidal surface
B21H 5/00 Making gear wheels
B21H 5/02 Making gear wheels with cylindrical outline
B21H 5/04 Making gear wheels bevel gears
B21H 7/00 Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons
B21H 7/02 Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons shovels
B21H 7/04 Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons hoes
B21H 7/06 Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons axes
B21H 7/08 Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons rakes
B21H 7/10 Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons scythes
B21H 7/12 Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons articles of like shape, e.g. wear-resisting attachments for shoes
B21H 7/14 Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons knurled articles
B21H 7/16 Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons propeller blades
B21H 7/18 Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons grooved pins; Rolling grooves, e.g. oil grooves, in articles
B21H 8/00 Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects
B21H 8/02 Rolls of special shape
B21H 9/00 Feeding arrangements for rolling machines or apparatus manufacturing articles dealt with in this subclass
B21H 9/02 Feeding arrangements for rolling machines or apparatus manufacturing articles dealt with in this subclass for screw-rolling machines