US PATENT SUBCLASS 434 / 416
.~.~ With chart, illustration, or indicia

Current as of: June, 1999
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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}
416.~.~ With chart, illustration, or indicia

DEFINITION

Classification: 434/416

With chart, illustration, or indicia:

(under subclass 408) Subject matter including a sheet giving information in s:graphic or tabular form, a picture or diagram of something, or markings such as letters or numbers.