Knife in agreement with Wikipedia. Swivel folding knife blade handle, allowing to bend by preventing the user from hurting by accidentally closing the hand, generally folding have mechanism.
Pocket knife in agreement with Wikipedia. Peasant knife, knife, original penny folding the most original design using a simple blade that handles freely, backspring, slipjoint, locking mechanism.
Ontario knives in line with Bladehq. Knives of ontario, 1942 been supplier of knives armed forces. At that time, the knife company developed knives using sharp materials, a manufacturing that allows.