WELLDYNAMICS by Welldynamics, Inc. (Track this)
Intl: (009) Electrical and scientific apparatus US: 021; 023; 026; 036; 038 Filing date: 16-Sep-2000 Serial number: 76132134
WELLDUCT by Basement Systems, Inc. (Track this)
Intl: (019) Nonmetallic building materials US: 001; 012; 033; 050 Filing date: 08-Jun-1998 Serial number: 75498781