US PATENT SUBCLASS 49 / 161
.~ Pivoted closure within framework of double hung sash


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

149  DF  MOUNTED FOR OPTIONAL MOVEMENTS {12}
161.~ Pivoted closure within framework of double hung sash {1}
162  DF  .~.~> Vertical axis pivot


DEFINITION

Classification: 49/161

(under subclass 149) Device comprising upper and lower vertically sliding closures mounted within a common frame, and wherein an enclosed section is mounted within the surrounding marginal frame of one of said closures for swinging movement relative thereto.

SEE OR SEARCH THIS CLASS, SUBCLASS:

176+, for a closure pivotally movable relative to side slides.