US PATENT SUBCLASS 52 / 207
.~ With one movable door section and at least one fixed section (e.g., sliding doors)

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

204.1  DF  FRAMING TO RECEIVE DOOR, DOORJAMB, OR WINDOW SASH {7}
207.~ With one movable door section and at least one fixed section (e.g., sliding doors)

DEFINITION

Classification: 52/207

(under subclass 204.1) Structure including a barrier having crossing or intersecting elongated members defining plural areas some of which are occupied by fixed panels, e.g., panes, and at least one being a passageway occupied by a movable floor or window.