US PATENT SUBCLASS 33 / 478
.~.~ Folding or separable

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
478.~.~ Folding or separable

DEFINITION

Classification: 33/478

Folding or separable:

(under subclass 474) Subject matter wherein the straightedges are adjustable from a storage position to a 90 deg. angle or one of the straightedges can be removed from the device.

(1) Note. The devices are generally intended to be used only at fixed right angles and folded merely for storage purposes.