.~> Surface projections, indentations, or slits {5}
DEFINITION
Classification: 492/28
WITH SPECIFIC ROLLER EXTERIOR SURFACE STRUCTURE:
(under the class definition) Roll wherein the peripheral portion has raised, lowered, or irregular localized areas especially adapted for a purpose.
SEE OR SEARCH CLASS
72, Metal Deforming,
103+, for a noncylindrical rotating tool deforming a rotating metallic workpiece and subclasses 191+ for a "roller" having surface irregularities (e.g., a rotary forging die).