Mark Identification

LEARNING BY DOING

Serial Number

75652381

Filing Date

Mar 1, 1999

Registration Date

Aug 21, 2001

Trademark by

Classification Information

[ EDUCATIONAL COMPUTER SOFTWARE, NAMELY, COMPUTER BASED TUTORIALS AND EXERCISES PERTAINING TO MATHEMATICS ]

PRINTED PUBLICATIONS NAMELY NOTEBOOKS AND WORKBOOKS CONTAINING INFORMATION AND TUTORIAL EXERCISES PERTAINING TO MATHEMATICS