CLINK by BLOCKDOT, INC. (Track this)
Intl: (009) Electrical and scientific apparatus US: 021; 023; 026; 036; 038 Filing date: 02-Aug-1996 Serial number: 75976994
DCLINK by Data Systems International, Inc. (Track this)
Intl: (009) Electrical and scientific apparatus US: 021; 023; 026; 036; 038 Filing date: 26-May-1995 Serial number: 74680465
MERCLINK by CINCINNATI BELL TELEPHONE COMPANY LLC (Track this)
Intl: (038) Telecommunications US: 104 Filing date: 23-Feb-1990 Serial number: 74031826