Quotables
"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 5253131 | Servo pattern for location and positioning of information on a disk drive A servo pattern which provides for reference clock synchronization, track following and track crossing, and radial and angular head position information, is described. On each servo track, no two locations have the same pattern, and on each servo track, t... | 10/12/1993 |
