US PATENT SUBCLASS 33 / 463
.~.~.~.~ Three straightedges forming a triangle

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

403  DF  STRAIGHTEDGE TYPE {16}
452  DF  .~ Plural straightedges, relatively moveable {6}
456  DF  .~.~ Multipivoted straightedges {3}
459  DF  .~.~.~ Two straightedges pivoted at the ends of a central straightedge {3}
463.~.~.~.~ Three straightedges forming a triangle

DEFINITION

Classification: 33/463

Three straightedges forming a triangle:

(under subclass 459) Subject matter wherein the various straightedges are adjustable to construct a three-sided geometrical figure.