Positioners and torque arms for power tools; balancers and retractors for power tools in the nature of hoists and supportive devices for reducing an operator's burden during operation of machinery by suspending and retracting tools and mechanical power-operated and pneumatic lift assists, namely, mechanical manipulating arms, articulating arms, pneumatic lift tables, and tool balancers; Beam trolleys for attaching hoists, guiding and moving balancers, retractors, and power tools; railing and rail trolleys for attaching hoists, guiding and moving balancers, retractors, and power tools

Hand tools, namely, tool positioners; Manual hoists for reducing an operator's burden during operation by suspending and retracting handheld tools

Trolleys and mobile carts