"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 |
| 6349658 | Auger combustor with fluidized bed An improved auger combustor for the incineration of refuse featuring, in its preferred embodiment, a granular substrate formed as a fluidized bed by underfire air and composed of particulate material with pollution abatement properties, an auger with expa... | 02/26/2002 |