BLACKWELL LIBRARY SYSTEMS, INC. Trademarks
BOOKLINE
Filed: December 4, 1984
COMPUTERS AND COMPUTER PROGRAMS
Owned by: BLACKWELL LIBRARY SYSTEMS, INC.
Serial Number: 73511848
PERLINE
Filed: December 4, 1984
COMPUTERS AND COMPUTER PROGRAMS
Owned by: BLACKWELL LIBRARY SYSTEMS, INC.
Serial Number: 73511954
