INVALCO, INC. Trademarks
INVALCO
Filed: January 2, 1991
oil and gas products; namely, meter houses, orifice flange union meter tubes, manually operated metal valves for oil, water…
Owned by: INVALCO, INC.
Serial Number: 74127480
LACT-TRONIC
Filed: May 24, 1993
monitor to detect water in hydrocarbon liquid
Owned by: INVALCO, INC.
Serial Number: 74393607