"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 |
| 4840022 | Process and device for the servicing of work stations of spinning or doubling machines by means of a plurality of service units capable of travelling alongside the work stations In order to service work stations of either spinning or doubling machines of the type having several service units travelling alongside their work stations, whenever an inspection of a given service unit becomes necessary, the given service unit to be ins... | 06/20/1989 |