TFC by Triangle Fastener Corporation (Track this)
Intl: (042) Computer, scientific & legal US: 101 Filing date: 20-Nov-1981 Serial number: 73338212
TFC by KOCK MEMBRANE SYSTEMS, INC. (Track this)
Intl: (011) Environmental control apparatus US: 031 Filing date: 14-Nov-1977 Serial number: 73148510