RIG HAMMERS, INC. Trademarks
AUTODUCT
Filed: March 24, 1970
WELDING MACHINES ADAPTED TO MAKE PERIPHERAL WELDS ON VERTICALLY EXTENDING STRUCTURAL MEMBERS, SUCH AS OIL WELL CONDUCTOR…
Owned by: RIG HAMMERS, INC.
Serial Number: 72354933
RIG HAMMERS
Filed: June 12, 1980
Conductor Pipe Driving Services for Wells
Owned by: RIG HAMMERS, INC.
Serial Number: 73266070