it means that they checked the knife and everything about it twice. So it should never have any mistakes. It turned into the logo for case knives today.
Wiki User
∙ 12y agoIt's the quality of the blade material.
do you mean numerical quantity or number of different patterns?
XX=20
XX = 20
The Case Copperlock started in 1997.
20
XX is the Roman numeral for 20
XX means twenty.
I think your are thinking of the Case RussLock knife.
The 62009 is a Case 1/2 Barlow knife.
The Roman numeral XX represents the number 20.
20