US PATENT SUBCLASS 49 / 429
.~.~ Cooperates with counterbalance hardware

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

404  DF  WITH MEANS MOUNTING CLOSURE FOR RECIPROCATION {16}
428  DF  .~ Diverse or springy material guide or slide {4}
429.~.~ Cooperates with counterbalance hardware {1}
430  DF  .~.~.~> Counterbalance within jamb-guide gap

DEFINITION

Classification: 49/429

(under subclass 428) Device wherein the slide or guide engages or accommodates counter-balance hardware.

SEE OR SEARCH THIS CLASS, SUBCLASS:

445+, for a sliding closure having a counterbalance.