"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 6609867 | Anti-loosening nut assembly An anti-loosening nut assembly is composed of an upper nut 3 and a lower nut 2 that engage with each other in an eccentric manner to afford the so-called `wedging` effect of surely inhibiting them from loosening themselves. The upper nut 3 has one or more... | 08/26/2003 |