Technically Swiss army knifes are only produced in Switzerland. To call anything not produced in Switzerland "Swiss" is false advertising in most countries in the world. But I think it is allowed in the USA.
So the correct answer is "never".
No, you cannot carry a Swiss Army knife on a plane.
A Swiss army knife is made of stainless steel.
a Swiss army knife is called 'un couteau suisse' in French.
No matter how many features a Swiss knife has it's still a Swiss knife
There are you
Yes, you can bring a Swiss Army knife in your checked luggage, but not in your carry-on luggage.
The swiss army knife actually originated in Switzerland. It was made for the Swiss army to take out with them because it functioned as so many other things.
Yes, you can carry a Swiss Army knife in your checked luggage, but not in your carry-on luggage when flying.
In Neptune
A typical swiss army knife will have different tools available for use on it. Some of these tools will be things like a knife, screw drivers, scissors, a file, cork screw, a saw and many more. A swiss army knife will be well made and durable.
Your question's a little vague: 1. The knife is a real knife (it exists and will cut things) 2. The knife is NOT a "Swiss Army" knife - that title belongs to Victorinox AG
Perhaps manufacturing, they do make the Swiss Army knife which is produced by SWIBO and that product is known around the world.