slide 2 of 6. When most people ask 'how long does a patent last', they are inquiring about utility patents. A utility patent is the patent granted for new machines, processes, products, and scientific formulas such as medicines or new elemental compounds.
The Stick. The largest part of the violin bow is the stick,with the best ones made of Pernambuco wood from Northeast Brazil, although carbon fiber is another quality choice.he Hair. The hair is the part of the violin bow that touches the strings and produces sound. Horse-hair is the traditional favorite, but synthetic hairs are also used for cheaper bows.
The top and bottom parts are called âlimbsâ which are made of wood, fiberglass, carbon, and other materials. Your bow gets its power from the unique curve at the limb tips, a design first developed by Egyptian archers thousands of years ago. Parts of a recurve bow. This diagram will show you the different parts of a modern takedown recurve bow.