US PATENT SUBCLASS 434 / 418
.~.~ With ruler, straight edge, or holder therefor

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

Internet Version by PATENTEC © 1999      Terms of Use


434 /   HD   EDUCATION AND DEMONSTRATION

365  DF  MEANS FOR DEMONSTRATING APPARATUS, PRODUCT, OR SURFACE CONFIGURATION, OR FOR DISPLAYING EDUCATION MATERIAL OR STUDENT'S WORK {37}
408  DF  .~ Chalkboard or equivalent means having easily erasable surface {14}
418.~.~ With ruler, straight edge, or holder therefor

DEFINITION

Classification: 434/418

With ruler, straight edge, or holder therefor:

(under subclass 408) Subject matter including a strip used for guiding a pen or pencil in drawing lines or for measuring, or a means for holding a strip of such type.