PORTEC, INC. Trademarks
PORTEC POLY INSULATED
Filed: April 4, 1969
RAILWAY RAIL JOINTS
Owned by: PORTEC, INC.
Serial Number: 72323729
PORTEC POLY PLATE
Filed: April 18, 1972
ABRASION PLATE FOR USE BETWEEN INSULATED RAIL JOINTS AND TIES IN RAILWAY TRACK
Owned by: PORTEC, INC.
Serial Number: 72421752
