Roger V. von Oech Trademarks
X-BALL
Manipulative puzzles
Owned by: Roger V. von Oech
Serial Number: 77509475
I-BALL
Manipulative puzzles
Owned by: Roger V. von Oech
Serial Number: 77807765
Y-BALL
Manipulative puzzles
Owned by: Roger V. von Oech
Serial Number: 77837124
STAR-BALL
Manipulative puzzles
Owned by: Roger V. von Oech
Serial Number: 77918749
EUREKA BALL
Manipulative puzzles
Owned by: Roger V. von Oech
Serial Number: 85621648
