Kohlberg, Elon Trademarks
MAD ADDER
Filed: April 3, 1997
computer software that acts as a teaching tool for mathematics; computer game software
Owned by: Kohlberg, Elon
Serial Number: 75268828
MAD ADDER
Filed: April 3, 1997
printed instructional, educational, and teaching materials in the field of elementary-level mathematics
Owned by: Kohlberg, Elon
Serial Number: 75268895
MAD ADDER
Filed: April 3, 1997
toy building blocks designed to teach mathematics, and an accompanying rack sold as a unit therewith
Owned by: Kohlberg, Elon
Serial Number: 75268898
MAD ADDER
Toy building blocks designed to teach mathematics, and an accompanying rack sold as a unit therewith
Owned by: Kohlberg, Elon
Serial Number: 75833720
