it depends on the product they make if its useful
There is no one inventor, and no one set amount they can make. Many make nothing, a very few can make millions. Depends on the invention, and how much of a market there is for that thing.
5
cheap about 2 bucks or you can make it i guess,mom does
You first patent it, but check out how that works in your country because it differs.
When purchasing a chip for a diesel truck you want to make sure it has some of these features; Easy snap in installation, and you want the chip to be able to be easily removed for servicing. Also, One think you need to make sure you get is a chip that doesn't void your warranty. The rest of the features are pretty much depending on what you want in a chip such as how much speed boost you are wanting as well as how much more fuel efficiancy you are wanting.
You could try to chip ice with a knife or a spoon, but the machine is much easier and much faster.
If your just talking about the basic plastic and chip, then the answer is about 75p a card. The majority of this cost goes in to the chip and making sure that it's secure.
Mow a lawn and clip weeds, if your lucky you can get about that much.
he got 1 million euros..........fr tat......
Although he did not patent the potato chip it is reported that he opened a potato chip factory in a converted barn and also served them at his restaurant. See related link.
Archytas of Tarentum, he was a philosopher and inventor much like Archimedes.