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"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 |
| 6371846 | Method for ventilating secure facility and system and apparatus used therefor A security vent includes a housing, a drawer and a latch. The housing includes first and second ends defining a passageway in which the drawers receive. The drawer includes a filter receiving slot. The drawer is movable in and out of the passageway to pro... | 04/16/2002 |
| 5664997 | Apparel and equipment locker incorporating contamination and toxic materials extraction and evacuation system A locker incorporating a contamination and toxic materials extraction and evacuation system. An enclosure is provided with an access opening and an access door which when open enables the placement of wearing apparel and other contaminated equipment withi... | 09/09/1997 |
| 5595081 | Lockable container, such as toy safe A lockable container, such as a toy safe, comprises a box having an upper wall, a lower wall, a back wall, and two side walls and having a front opening. A front door hinged to the box is movable between a closing position, in which the front door closes ... | 01/21/1997 |
| 5350338 | Vault ventilator system A system for introducing fresh air to a locked vault which is integral to the door of the vault. A fan provides motive force to the air which flows principally through passages in, or created with, existing components in the door. A food/water passage may... | 09/27/1994 |
| 5194039 | Personnel safety system for vaults A system for introducing fresh air to a locked vault which is integral to the door of the vault. A fan provides motive force to the air which flows principally through passages in, or created with, existing components in the door. A food/water passage may... | 03/16/1993 |
| 4224861 | Vaults and strongrooms A vault or strongroom includes unitary and self-contained equipment for providing life-support within the sealed vault-enclosure. The carbon-dioxide content of the atmosphere within the enclosure is monitored and a pump is operated if the monitored value ... | 09/30/1980 |
| 4179723 | Kiosk unit A self-contained Kiosk Unit comprises a unique self-supporting metal frame having a plurality of walls extending upwardly and forming a housing which includes a computer unit mounted therein. The controls for the computer unit are mounted in a recessed po... | 12/18/1979 |
