HYCALOG, INC. Trademarks
QUADRASEAL
Filed: September 21, 1971
PIPE AND TUBING JOINTS AND CONNECTIONS
Owned by: HYCALOG, INC.
Serial Number: 72403243
SPIRALINE
Filed: September 5, 1975
THREADED METAL TUBULAR COMPONENTS-NAMELY, WELL CASING
Owned by: HYCALOG, INC.
Serial Number: 73062179
