US PATENT SUBCLASS 49 / 274
.~.~ Spring return

Current as of: June, 1999
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49 /   HD   MOVABLE OR REMOVABLE CLOSURES

263  DF  TREADLE OR IMPACT INITIATED OPERATOR {8}
273  DF  .~ Load maintained, self-returning {1}
274.~.~ Spring return

DEFINITION

Classification: 49/274

(under subclass 273) Device wherein a resilient means closes the closure.