Wenger is a company that creates the types of knives that were first used after what period?
Wenger Wenger is one of two companies that have manufactured Swiss Army knives. Based in Delémont, Wenger was acquired by rival Victorinox in 2005. Since 2013, Wenger Swiss Army knives are integrated in the Victorinox collection (as the "Delémont collection"); the brand Wenger remains for watches and licensed products.
Pattern welding Pattern welding is the practice in sword and knife making of forming a blade of several metal pieces of differing composition that are forge-welded together and twisted and manipulated to form a pattern. Often called (Modern) Damascus steel, blades forged in this manner often display bands of slightly different patterning along their entire length. These bands can be highlighted for cosmetic purposes by proper polishing or acid etching. Pattern welding was an outgrowth of laminated or piled steel, a similar technique used to combine steels of different carbon contents, providing a desired mix of hardness and toughness. Although modern steelmaking processes negate the need to blend different steels, pattern welded steel is still used by custom knifemakers for the cosmetic effects it produces.