The length of an actual tape dispenser is about five inches. However, the tape in the dispenser can be much longer. The most common measurement for the amount of tape on a roll is about 300 inches.
5
With a ruler, or a measuring tape.
a tape measure
a tape measure
If you have tape that is 1.4 cm longs and the length of 29.4 would equal to 21 cm. This is a simple math problem.
It is a length of 1.9 centimetres.
a gentleman by the name of john motto invented the tape dispenser.
There are many places where one could buy a packing tape dispenser. Just a few places where you could purchase a packing tape dispenser are eBay, Amazon, and Walmart.
A tape dispenser combines a spindle to hold a roll of tape with a small sawtooth blade to cut the tape with. One applies the tape to something, e.g. your finger, draws out the desired amount, and then cuts it using the blade.
a pulley wheel ans axile gears cork springs and sometimes a lever
Yes
1 ounce
A pulley
Dymo makes a combination tape and shipping label dispenser. They have an economy 4" dispenser, as well as a 6" dispenser specifically for oversized rolls.
Organic means it is alive or was once alive - unless your tape dispenser is made of bone or something, it's not organic. They're usually plastic.
JUST open nerds
If you mean 'sticky tape' - un dérouleur de scotch/ un escargot de scotch
It was invented in 1930 by an engineer named Richard Drew.