US PATENT SUBCLASS 220 / 641
.~.~ Edge (e.g., rim, lip, brim, etc.) bent or rolled around a reinforcing element

Current as of: June, 1999
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220 /   HD   RECEPTACLES

639  DF  SEPARATE REINFORCING ELEMENT {4}
640  DF  .~ Open end edge reinforcing means {3}
641.~.~ Edge (e.g., rim, lip, brim, etc.) bent or rolled around a reinforcing element

DEFINITION

Classification: 220/641

Edge (e.g., rim, lip, brim, etc.) bent or rolled around a reinforcing element:

(under subclass 640) Receptacle wherein at least the container edge is folded or curled around a separate reinforcing element to form a strengthened, beaded edge.