US PATENT SUBCLASS 434 / 192
.~.~ Chalkboard or equivalent means having readily erasable surface
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
188
DF
MATHEMATICS
{4}
191
DF
.~ Arithmetic {17}
192
.~.~ Chalkboard or equivalent means having readily erasable surface
DEFINITION
Classification: 434/192
Chalkboard or equivalent means having readily erasable surface:
(under subclass 191) Subject matter including a panel having a surface from which marks made by chalk or other means can easily be erased.
SEE OR SEARCH THIS CLASS, SUBCLASS:
408+, for chalkboards and equivalent readily erasable means.
