US PATENT SUBCLASS 33 / 444
.~.~.~ By cord and roller

Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

403  DF  STRAIGHTEDGE TYPE {16}
430  DF  .~ Base attached {8}
443  DF  .~.~ Both ends connected {3}
444.~.~.~ By cord and roller

DEFINITION

Classification: 33/444

By cord and roller:

(under subclass 443) Subject matter comprising a rotatable cylindrical guide and flexible means traveling over the guide so as to assist in the mechanical movement of the straightedge device.