US PATENT SUBCLASS 285 / 4
.~ Score line or groove

Current as of: June, 1999
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285 /   HD   PIPE JOINTS OR COUPLINGS

3  DF  FRANGIBLE ELEMENT {1}
4.~ Score line or groove

DEFINITION

Classification: 285/4

(under subclass 3) Subject matter including score lines or grooves whereby the size or angle of a piece may be varied prior to assembly by cutting or breaking along the line or groove.