"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 |
| 4531648 | Railway car draft gear with slack adjustment and cushioning The draft gear includes a slack adjustment and cushioning assembly mountable within a female connector for pin connection with a male connector inserted therein. The assembly is made up of a follower which contacts the rear end of the male connector, a sl... | 07/30/1985 |
| 4480758 | Railway coupler arrangement A railway coupler arrangement which eliminates the conventional yoke strap, thereby enabling a larger draft gear to be employed in the coupling without increasing the overall size of the sill. The invention also provides a novel assembly for facilitating ... | 11/06/1984 |