It seems that the iconic Swiss Army Knife has become a generic term, but only 2 companies can manufactuer the Swiss Army Knife, they are Victorinox and Wenger. In 2005 Victorinox took over the Wenger company...
Most of the tools and blades on Victorinox and Wenger Swiss Army knives are manufactured from high grade stainless steel, but they may still corrode if exposed to certain elements such as salt water or acids....