FREDERICK J. DUHL AND JOEL ZIFF Trademarks
TEAMPLAY
Filed: October 19, 1987
COMPUTER PROGRAMS RECORDED ON MACHINE-READABLE STORAGE MEDIA FOR CLASSROOM TEACHING AND EDUCATION
Owned by: FREDERICK J. DUHL AND JOEL ZIFF
Serial Number: 73690355
NOTEPASSER
Filed: October 19, 1987
COMPUTER PROGRAMS RECORDED ON MACHINE-READABLE STORAGE MEDIA FOR CLASSROOM TEACHING AND EDUCATION
Owned by: FREDERICK J. DUHL AND JOEL ZIFF
Serial Number: 73690356