Electric garage door openers and closers; Electric jacks; Hydraulic door closers; Hydraulic jacks; Lifting jacks other than hand-operated; Machine tools, namely, clamps for use in the precision clamping of work pieces; Machine tools, namely, powered machines for cutting or shaping or finishing metals or other materials; Pneumatic jacks; Power jacks; Power operated jacks; Spark plugs; Stands for hydraulic jacks; Trailer mounted hydraulic jacks; Machine parts in the nature of mechanical seals f...