Quotables
"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 |
| 6296208 | Railway switch machine point detection system A point detection system for a railway switch machine having a housing includes a point detector bar positionable in a normal point position and a reverse point position, and point detecting sensors positioned within the housing for detecting when the poi... | 10/02/2001 |
| 6097302 | System and method for monitoring a plural segment light-emitting display A monitoring system for a display unit includes phototransistors for detecting light emitted from a plurality of selectively energizable light-emitting diode (LED) segments in an energized state and for generating a voltage which is representative of the ... | 08/01/2000 |
