73659679
May 8, 1987
Mar 22, 1988
Active Trademark
BOOKS AND JOURNALS, CATALOGS OF BOOKS AND JOURNALS, NEWSLETTERS, AND MANUALS, IN THE FIELDS OF SCIENCE
Paper Goods and Printed MatterEDUCATIONAL SERVICES IN THE FIELD OF SCIENCE RENDERED BY PRINTED PUBLICATIONS, BY ELECTRONIC MEDIA, AND BY CONDUCTING CONFERENCES AND SEMINARS
Education and Entertainment