US PATENT SUBCLASS 434 / 237
.~ Cooperation of plural pupils


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

236  DF  PSYCHOLOGY {2}
237.~ Cooperation of plural pupils


DEFINITION

Classification: 434/237

Cooperation of plural pupils:

(under subclass 236) Subject matter involving interaction between two or more persons.