US PATENT SUBCLASS 160 / 148
.~.~.~.~.~ Weighted parallelogram element extension

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}
136  DF  .~ Parallelogram type {6}
138  DF  .~.~ With operator {1}
139  DF  .~.~.~ Unit collapsing only {6}
146  DF  .~.~.~.~ Weight {2}
148.~.~.~.~.~ Weighted parallelogram element extension

DEFINITION

Classification: 160/148

(under subclass 146) Devices wherein an extension of one of the parallelogram elements is weighted.

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143, for this feature with disclosed diverse type of operator whether or not claimed.