Quotables
"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 7209730 | Telephone adapted for emergency dialing by touch A telephone has a key pad with ten number keys arranged to dial the digits from 0 to 9 inclusive, each of these number keys being marked with a visual indicator denoting the digit which the number key is arranged to dial. The 1 and 9 number keys are provided with ta... | 04/24/2007 |
| 6941125 | Telephone adapted for emergency dialing by touch A telephone has a key pad with ten number keys arranged to dial the digits from 0 to 9 inclusive, each of these number keys being marked with a visual indicator denoting the digit which the number key is arranged to dial. The 1 and 9 number keys are provided with ta... | 09/06/2005 |
| 5011412 | Educational keyboard with removable keys An educational keyboard with removable keys, wherein musical tone generation for a given key is in response to correct placement of the key in its corresponding key slot, is disclosed. Incorrect placement results in a sour tone. Lights are also used to in... | 04/30/1991 |
| 4468203 | Classroom demonstration calculator A teaching device, for use in a classroom, comprising a hand-held size calculator adapted to normally include a display for showing the numerical output of the calculator, and adapted to include a face plate having a plurality of keys which are arranged i... | 08/28/1984 |
| 4378217 | Terminal trainer keyboard and display apparatus for teaching keyboard operations and knowledge items Terminal trainer keyboard and display apparatus for teaching keyboard operations and knowledge items and skills, including a keyboard array of touch keys representing individual characters and keyboard operations each having a switch associated therewith,... | 03/29/1983 |
