"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
Sir William Preece, chief engineer, British Post Office ; 1878
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| Number | Title | Issue Date |
| 5328314 | Device for closing food cans at a high rate The device includes a compression stand on which a food can is placed and which is driven with vertical translation motion by a telescopic rod under the control of a cam-follower roller engaged in a cam track. During the upstroke of the rod, its two compo... | 07/12/1994 |