US PATENT SUBCLASS 33 / 426
.~.~.~ Located on straightedge

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

403  DF  STRAIGHTEDGE TYPE {16}
418  DF  .~ Square and pivoted straightedge {5}
424  DF  .~.~ With protractor {2}
426.~.~.~ Located on straightedge

DEFINITION

Classification: 33/426

Located on straightedge:

(under subclass 424) Subject matter wherein the protractor is attached to the straightedge.