U.S. federal trademark · Serial No. 76496430 · Reg. No. 2876400
POWER OPERATED CONSTRUCTION TOOL INJECTING AND EXTRACTING VARIOUS GRANULAR, FLUID AND SEMI-FLUID MATERIALS INTO AND FROM A GROUND SURFACE AND OTHER TYPES OF SURFACES, MADE UP OF INTERCONNECTING TUBULAR MEMBERS WITH A SELF-ADVANCING HELIX AND DRILL BIT
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