US PATENT SUBCLASS 49 / 177
.~.~ Vertical axis pivot

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

149  DF  MOUNTED FOR OPTIONAL MOVEMENTS {12}
176  DF  .~ Pivot mounted on sliding member; e.g., slide-stile {5}
177.~.~ Vertical axis pivot {3}
178  DF  .~.~.~> With free stile slide-portal latch
179  DF  .~.~.~> Displaceable stop strip
180  DF  .~.~.~> Free stile slide-closure latch, closure carried

DEFINITION

Classification: 49/177

(under subclass 176) Device wherein the axis of the pivot is vertically oriented.

SEE OR SEARCH THIS CLASS, SUBCLASS:

162, for an enclosed section which swings on a vertically oriented axis relative to a sliding surrounding marginal frame.