US PATENT SUBCLASS 33 / 500
.~.~ Locking

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}
495  DF  .~ Pivot joints {3}
500.~.~ Locking

DEFINITION

Classification: 33/500

Locking:

(under subclass 495) Subject matter having means for positively securing the movement or position of the straightedges at one or more definite points.