US PATENT SUBCLASS 49 / 157
.~.~ Other movement is vertical sliding

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

149  DF  MOUNTED FOR OPTIONAL MOVEMENTS {12}
152  DF  .~ One movement multidirectional {3}
157.~.~ Other movement is vertical sliding

DEFINITION

Classification: 49/157

(under subclass 152) Device wherein in addition to the multidirectional movement there is means providing for a guided rectilinear vertical movement.