Balisong sandwich knives are assembled in layers, which are usually pinned or screwed. They allow the pivots to be adjusted more firmly without fixing. When the knife is closed, the blade rests between the layers. It is not entirely clear where, when and how butterfly knives were created. There are a number of oral traditions that say butterfly knives were first used around 800 AD. Made in the Philippines. Since there is no archaeological evidence or document to prove it, the story is not entirely certain. According to a California appeals court, this definition of a switch blade also includes butterfly knives, as there are no restrictions on transporting butterfly knives in the state of Tennessee, whether overt or hidden. Want to buy knives online, but don`t know where to start? Check out our list of the most important questions you should ask before buying knives online. If the possession itself is illegal, all others become illegal by default. If the possession is legal but the sale is not, it effectively becomes impossible to legally obtain a switch blade from that state (since federal law prohibits interstate selling). You must physically travel to another state to legally purchase. In California, butterfly knives are prohibited by Penal Code Sections 21510 and 17235 CP.
In a number of states in the United States, there are laws prohibiting the carrying or possession of a butterfly knife in public. In some states, these types are classified as gravity knives, switch blades, or daggers. In a number of countries around the world, there are laws against the use of butterfly knives in public places. Let`s take a look at the laws of a few different countries. Once upon a time, there were laws restricting the possession of butterfly knives in the state of Kansas. However, starting in the summer of 2013, these knives and all types of bladed weapons were decriminalized. According to SurvivalLife .com, the states that have specific laws that make butterfly knives illegal are Hawaii, Maine, New Mexico and Wisconsin. Many other states have laws that restrict these knives to varying degrees.
According to Criminal Code 21510 PC, butterfly knives are considered a form of switch blade and are illegal in California. In particular, it is a crime to transport, possess, sell or transfer a butterfly knife in public. MYTH: Switchblades/OTF knives and Balisongs are illegal everywhere without exception In Utah, the law is similar to that of the state of Oregon. It is legal to possess these knives, but you are not allowed to hide or cover them. A butterfly knife can be folded to hide the blades. Even in states where it is legal to possess and transport knives, there are still places where the possession of knives is strictly prohibited. All federal property falls into the category of these prohibited places. Citizens cannot carry butterfly knives on federal property, hidden or not, unless it is a federal agent. New Hampshire restricts the possession of butterfly knives to certain citizens.
Those who have been convicted of crimes against persons or property are not legally entitled to possess or carry them. The following is a comprehensive compilation of the laws governing switching blades (also known as automatic knives or OTFs) in the United States. This table covers all federal laws as well as each state law. These laws are for citizens who are not subject to law enforcement, as almost all laws contain some sort of exemption for the police. In states where the illegal intent must be proven (and not simply presumed) that the knife is illegal, this table considers this “legal.” A butterfly knife, also known as balisong, fan knife or batangas knife, is a type of folding pocket knife native to the Philippines. Its features are two handles that rotate in opposite directions around the tang, so the blade is hidden in grooves in the handles when closed. A latch holds the handles together, usually mounted on the one facing the cutting edge (the “bite handle”).  Butterfly knives were declared illegal in Germany after the Erfurt massacre in July 2003. In this country, it is illegal to buy, possess, carry, lend, modify, exchange, use or manufacture butterfly knives. The differences and whether these knives are illegal or not have to do with how different states and countries classify knives.
Since some states consider them gravity knives, knives or daggers, knives are then subject to the laws written on these types of knives. -Oregon: Butterfly knives cannot be hidden. The open carrying of butterfly knives is allowed. It is legal to sell and transport butterfly knives in the state of Maine. Now, butterfly knives do not perform many practical functions. Owners and collectors can keep them as decorative objects or, as already mentioned, demonstrate the opening and closing flourishes. There is also a theory that butterfly knives are actually an adaptation of a French tool used to measure. This tool was called King`s Foot and was invented between the 16th century and the end of the 18th century. In this theory, there is no firm explanation of how the tool was introduced to the Philippines, although some have said that sailors in the Spanish Empire may have introduced the tool. In the state of Indiana, it is legal to possess and transport one of these knives. There are no laws prohibiting wearing them secretly. The name “Balisong” is derived from the Barangay (village) Balisong, part of Taal Municipality, Batangas Province, which, along with neighboring Barangay Pandayan, were the original production centers of knives in the Philippines.
Both barangays housed a forging industry that also produced other blade tools such as bolo knives.    It is also claimed that the meaning of the term Balisong is derived from the Tagalog words baling sungay (literally “broken/folding horn”), as the handle of the blade was traditionally made of carved carabao and deer horn as well as bone.   Traditional balisong is also known as veinte y nueve or “twenty-nine” in the Philippines because they are 29 cm (11 inches) long when opened. Other names for knives in English are “fan knife” and “butterfly knife” of the movement and “click-clack” of the sound they make when opened and closed.