US PATENT SUBCLASS 160 / 305
.~.~ For spring operated roller


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

238  DF  ROLL TYPE {12}
291  DF  .~ With brake or stop {8}
305.~.~ For spring operated roller {1}
306  DF  .~.~.~> With means to prevent uncoiling of spring on removal from support


DEFINITION

Classification: 160/305

(under subclass 291) Roll type devices in which there is a spring operated roller.