KBP: PA and WA are the same with their permits. handguns only, our license is a CPL (Concealed Pistol License)...however...WA and PA are also the same when it comes to the Open Carry of weapons, no license required.
I also have a large folding knife...but I have a small leather holster for it that goes on my belt. It is no longer a concealed weapon according to the law, and legal to carry under the state constitution provision in Article 1 section 24 (WA),,,and as long as it is not a spring loaded switchblade, it is not a prohibited weapon (we even have exemptions for that, but not relivant here)
I believe PA has very similar.