23 CONSTRUCTION EQUIPMENT-NAMELY, POWERED EARTH-BORING MACHINES FOR THE INSTALLATION OF SUB-SURFACE PIPES, CONDUITS, CASINGS, AND CULVERTS IN A DIRECTION HAVING A SUBSTANTIAL HORIZONTAL COMPONENT AND SUB-ASSEMBLIES AND PARTS THEREOF
Trademark Events
Mar 4, 1996
Expired Sec. 9
Sep 16, 1980
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.