US PATENT SUBCLASS 220 / 798
.~.~.~ And includes juncture internal of passage mouth

Current as of: June, 1999
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220 /   HD   RECEPTACLES

200  DF  CLOSURES {45}
796  DF  .~ Removable closure retained by friction {5}
797  DF  .~.~ Closure embraced by upwardly opening trough at passage mouth {1}
798.~.~.~ And includes juncture internal of passage mouth

DEFINITION

Classification: 220/798

And includes juncture internal of passage mouth:

(under subclass 797) Subject matter wherein the closure includes an additional friction contact surface between the closure and closure support inner wall.