It's probably not a big deal, but I thought that it might be worth asking.
The Washington Revised Code says that every person who;
(a) Manufactures, sells, or disposes of or possesses any instrument or weapon of the kind usually known as slung shot, sand club, or metal knuckles, or spring blade knife, or any knife the blade of which is automatically released by a spring mechanism or other mechanical device, or any knife having a blade which opens, or falls, or is ejected into position by the force of gravity, or by an outward, downward, or centrifugal thrust or movement;
is guilty of a misdemeanor. The part that confuses me is the part saying that possessing and selling a knife that can be opened by an outward, downward or centrifugal thrust of movement is unlawful. I'm pretty sure that every folding knife can be opened with a thrust and obviously, there are stores that sell knives like that.
Could anyone ease my mind by explaining how this part of the law is possible with nearly every folding knife having the ability to be opened with a thrust (some requiring more force than others)? I'm a freak when it comes to knowing and following every law regarding weapons; I'm deathly afraid of going to jail if I have to defend myself with a knife "I'm not allowed to posses". I have been carrying a sog x ray vision mini which can be flung open by the thumb stud with very little effort and opened by a thrust with just a little more force. I thought I had done my research and bought a knife that is completely legal to carry, but this portion of the law clouds my confidence.
Another question that's completely off topic, if a cities municipal code does not state how long a knife I can carry, would you just follow to the states law on blade length?
P.S. I'm sorry if this is a repost, I tried my best to search for a topic that answered my question.