LADDER CO., LTD. Trademarks
LADDER MULTIMEDIA
Filed: November 16, 1994
compact discs featuring educational materials, language courses, music, fictional stories, interactive games
Owned by: LADDER CO., LTD.
Serial Number: 74599680
LEARNING KEY
Filed: April 1, 1997
compact discs featuring educational materials and language courses
Owned by: LADDER CO., LTD.
Serial Number: 75267499
