US PATENT SUBCLASS 220 / 642
.~.~ Edge encompassed by U-shaped 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}
642.~.~ Edge encompassed by U-shaped reinforcing element

DEFINITION

Classification: 220/642

Edge encompassed by u-shaped reinforcing element:

(under subclass 640) Receptacle wherein a reinforcing member is folded around the edge.

SEE OR SEARCH THIS CLASS, SUBCLASS:

616, for an end wall joint including a separate reinforcing element intended to strengthen the joint.