Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Business
Class Information
Number: 434/413
Name: Education and demonstration > Means for demonstrating apparatus, product, or surface configuration, or for displaying education material or student's work > Chalkboard or equivalent means having easily erasable surface > Separate elements having erasable surfaces
Description: Subject matter including multiple erasable panels.










Query failed!