If you have a concealed carry permit from the state of Pennsylvania, you may. However, without this permit, what you're suggesting would be a very ill-advised thing to do - even though it doesn't fire projectiles, a blank firing weapon is still potentially dangerous, as the gases emitted from the barrel can cause injury at up to 20 metres. Thus, it would still be considered a concealed weapon, whether or not the state of Pennsylvania considers it a proper firearm.
Yes
Depends on where you are. They are illegal in New Jersey.
It all depends on who you are and what you are doing
Concealed weapons are illegal in Canada. It is illegal to carry a knife in public, concealed or otherwise. so wrong.... `you can carry knives in canada, just check for by-laws.
Yes, however you can not carry it with you, concealed or otherwise in public.
There is no law in pa that states you can't carry a concealed weapon into a bar. There are states where it is illegal but pa isn't one of them.
Brass Knuckles are illegal in Missouri because of there purpose and because they are classified as concealed weapons which are illegal to own without having a permit or reason to carry.
They have no special privileges to carry a concealed weapon.
No, Illinois has not approved concealed carry.
Concealed carry means hiding a firearm or weapon on your person
Apparently is does not require it to be concealed as long as you have a permit. See related link for more information.
If you have a concealed carry permit, you do. If you don't have specifically a permit to carry concealed, then you can't carry a pistol concealed. Most states which have concealed carry legislation either prohibit open carry, or else have laws on the matter which tend to be a bit ambiguous. For example, it may be legal, but it may also be accompanied by "menace to the public detriment laws" which make it illegal once someone sees you carrying openly, feels uneasy about it, and calls the police.