US PATENT SUBCLASS 33 / 476
.~.~ With special scale markings

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

403  DF  STRAIGHTEDGE TYPE {16}
474  DF  .~ Plural straightedges nonadjustably fixed at right angles (e.g., T-square, triangles, squares) {7}
476.~.~ With special scale markings

DEFINITION

Classification: 33/476

With special scale markings:

(under subclass 474) Subject matter provided with indicia pertaining to a specific type of a measurement desired.

SEE OR SEARCH THIS CLASS, SUBCLASS:

494, for other similar type for scale indicia on single straightedge devices.