Locking manhole covers made of metal

Rubberized Anti-Slip Coating for Application to Sealing Devices to Prevent Relative Rotation Between Seal Elements

Subsurface Oil, Gas, and Water Well Tools-Namely, Rotary Drill Bits and Section Mills

Metal building material, namely, mounting kits comprising clamps, bolts and nuts for supporting steel tubing frame components used in constructing equipment screens on commercial rooftop structures and sold to architects and construction contractors

Metal locking mechanisms

drilling pipe