Access security apparatus, namely, electronic access control systems for interlocking doors and hatch doors; Automatic electronic access control systems for interlocking doors and hatch doors; Electric access control and alarm monitoring systems for doors and covers; Electrical control panels; Electronic control circuits for door and hatch cover control instruments; Electrical push button switches; Power switches; Electric locks; Fire extinguishing apparatus in the form of automatic smoke, he...

Oil field tools, namely, elevators, power tools in the nature of spiders for gripping tubulars, brush tools used in oilfield operations to clean contaminants or other debris from the interior of a well bore or from the interior of a tubular within a well, power tools in the nature of scrapers used in oilfield operations which scrape debris from the interior of a tubular positioned within the well, power tools in the nature of magnetic retrieval tools used in oilfield operations which retrieve...

counterbalanced horizontal access doors made of metal for sidewalks, floors, pits, ceilings, and roofs; and counterbalanced metal basement doors; metal safety posts and safety supports for use in connection with ladders, hatchways, hatchway doors, and accessways

METAL ROOF SCUTTLES, SIDEWALK DOORS, CELLAR DOORS, AND STAIRWAYS FOR BUILDINGS

Common metals and their alloys, bands of metal, in particular bands of steel, sheet metal, in particular sheet steel, all of the aforesaid goods being raw materials for use in manufacture