"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 4886057 | Assisted breathing interface device An assisted breathing interface device for use by emergency care personnel in administering artificial resuscitation of a patient includes a housing unit having an open interior first and orifices communicating with the interior and a vent structure commu... | 12/12/1989 |