US PATENT SUBCLASS 160 / 234
.~.~.~.~ Acting to keep unit planar only

Current as of: June, 1999
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160 /   HD   FLEXIBLE OR PORTABLE CLOSURE, PARTITION, OR PANEL

130  DF  PLURAL STRIP, SLAT, OR PANEL TYPE {11}
218  DF  .~ Movably interconnected {4}
229.1  DF  .~.~ Edge-to-edge interconnected {5}
233  DF  .~.~.~ With relative pivotal motion preventing means {1}
234.~.~.~.~ Acting to keep unit planar only

DEFINITION

Classification: 160/234

(under subclass 233) Devices wherein the motion preventing means holds the panels in a planar position and does not hold them in any other position.

SEE OR SEARCH THIS CLASS, SUBCLASS:

217, for related art.