Environmental control apparatus Trademarks Filed in January 3, 1980
IMPEDATHERM
Filed: January 3, 1980
Heating Systems Comprising a Source of Electric Power and an Electric Heating Element for Heating Fluid Transport Pipe
Owned by: TPCO, INC.
Serial Number: 73244840
SURTEN-HEET
Filed: January 3, 1980
Heating Systems Comprising a Skin Effect Heating Element in the Nature of a Hollow Conductive Tube with an Enclosed Electrical…
Owned by: TPCO, INC.
Serial Number: 73245050
