Finisher with a punching function
Hole punch
Manually operable paper slitting device and method
Method and apparatus for cutting electrical outlet openings in p
Method and apparatus for locating utility structures behind cons
Method for operating a plate system for stamping presses and...
Method for perforating roofing sheet material
Method of making a tear line-forming perforation in a sealed mar
Method of making an aerator membrane
Method of perforating a texture to be sewn
Method of producing mat with valves therein
Paper web for a web fed rotary printing press
Perforation apparatus and method for use with sealing devices
Perforation method
Process and apparatus for the perforation of sheet material piec
Process and apparatus for the removal of gases and/or liquids fr
Radial line punch
Systems and methods for making a pizza pie having an outer...
Valve perforation arrangement
Web perforating utilizing a single perf cylinder and dual anvils