Method of using a device to ventilate a burning building

Apparatus for removal of packaging material from a big bale

System and apparatus for making pipe fencing

Tree trimmer

Engraver apparatus and method

Flip-down chainsaw cutter

Engraver apparatus and method

Apparatus and method for breaking rails

Roofing saw with locking mechanism and removable bearing support

Trip hazard removal system and method

Apparatus for cutting concrete curbs or other fixed structures