.~.~.~.~.~ Wire, filament, segmented or surface treated
DEFINITION
Classification: 384/573
Wire, filament, segmented or surface treated:
(under subclass 572) Subject matter wherein the cage is composed (a) of wire, (b) of filamentous material, (c) of separate annular or circumferential segments; or (d) wherein the cage surface is specially treated or coated.