US PATENT SUBCLASS 33 / 418
.~ Square and pivoted straightedge

Current as of: June, 1999
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403  DF  STRAIGHTEDGE TYPE {16}
418.~ Square and pivoted straightedge {5}
419  DF  .~.~> And sliding
420  DF  .~.~> Straightedge as a hypotenuse of the square {1}
422  DF  .~.~> Having circumferential pivot, only
423  DF  .~.~> With indicia for rafter cuts
424  DF  .~.~> With protractor {2}

DEFINITION

Classification: 33/418

Square and pivoted straightedge:

(under subclass 403) Subject matter comprising means establishing at least one right angle and one or more straightedge members angularly adjustable on the right angle means.

(1) Note. A square is a device having two straightedges at a 90 deg. angle to each other, the straightedges being of substantial length. A rule is comprised of a single straightedge member of determinate length and does not function as a square of this subclass type.