US PATENT SUBCLASS 220 / 348
.~.~ Spring biased

Current as of: June, 1999
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220 /   HD   RECEPTACLES

200  DF  CLOSURES {45}
345.1  DF  .~ Closure guided in reciprocating movement {8}
348.~.~ Spring biased

DEFINITION

Classification: 220/348

(under subclass 345) Device including spring means urging the closure in its opening or closing movement.