What is the use of this knife?

[Tjerk]

I bought this knife when I was younger but never figured out what it's main use was. I would appreciate your opinion. Mayby someone knows the name of the knife?

 

[not2sharp]

Carpet knife, pruner, self-defense......along those lines.

n2s

 

[Josh237]

It also looks like a counterfeit, but please correct me if I'm wrong