US PATENT SUBCLASS 33 / 452
.~ Plural straightedges, relatively moveable

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

403  DF  STRAIGHTEDGE TYPE {16}
452.~ Plural straightedges, relatively moveable {6}
453  DF  .~.~> Triangulation (e.g., solving trigonometric functions)
454  DF  .~.~> Parallel type
455  DF  .~.~> Intercontrolled bevel blades
456  DF  .~.~> Multipivoted straightedges {3}
464  DF  .~.~> Sliding
465  DF  .~.~> Single pivot {6}

DEFINITION

Classification: 33/452

Plural straightedges, relatively moveable:

(under subclass 403) Subject matter comprising two or more straightedges which can be adjusted in relation to each other for the purpose of positioning either straightedge on the work as needed.