"The idea that cavalry will be replaced by these iron coaches is absurd. It is little short of treasonous."
Aide-de-camp to Field Marshal Haig ; At a tank demonstration, 1916
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| Number | Title | Issue Date |
| 4679570 | Phonocardioscope with a liquid crystal display A phonocardioscope apparatus is provided for monitoring heart functions. The apparatus comprises an acoustical transducer for detecting the sound of heartbeats and producing an analog electrical signal in response thereto. An analog-to-digital converter c... | 07/14/1987 |