US PATENT SUBCLASS 428 / 66.3
.~ End closure

Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

64.1  DF  CIRCULAR SHEET OR CIRCULAR BLANK {8}
66.3.~ End closure

DEFINITION

Classification: 428/66.3

End closure:

(under subclass 64.1) Subject matter wherein the circular sheet or blank is to be used to plug or close an opening at the end of a container or conduit.