"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 |
| 5562634 | Intravenous catheter with automatically retracting needle-guide An intravenous catheter is provided with a cannula and a needle-guide for the cannula. A support carries the needle-guide, and has a first end from which the needle-guide extends. The support is carried in a sheath, having a diameter sufficient to permit ... | 10/08/1996 |