To open cans electrically, instead of using a manual crank.
the purpose of the letter opener is to open the letters in a neat way
The same as a manual can opener: opening the lid on a can.
An electric can opener typically ranges from 40 to 100 watts, depending on the model and brand.
The first electric garage door opener was invented by C.G. Johnson in the year 1926 in India, Hartford City. Before that the electric garage door opener wasn't very popular.
You can read the reviews on this website and decide if you'd like to purchase a red electric can opener from West Bend. http://www.target.com/West-Bend-Red-Electric-Opener/dp/B00030J1UC.
The purpose of the garage door opener spring is to counterbalance the weight of the garage door, making it easier to open and close. The spring stores and releases energy to assist in lifting the door, reducing the strain on the motor and allowing for smoother operation of the garage door opener.
Electric can openers were invented in the early 1950's
It depends, are you installing a gate opener, garage opener or a opener for a house door? What make and model is it, where is it being located, what will it need for power, what will it need for structure?
They are used to open cans.
Steel, copper and plastics
The purpose of the other side of a bottle opener is to provide a leverage point for lifting the cap off a bottle.
A number of electric can openers are made in the US including the EZ-DUZ-IT and, for heavier duty work, the Edlund 266 (see Sources and related links section below).ANSWER 2:There is only one electric can opener still made here and it is the Edlund 266. The EZ_DUZ_IT can opener is a manual can opener, not an electric.