biography
| sex:
| male
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| lived:
| (1800–74)
|
| biography:
| Inventor, born in Catskill, New York, USA. His inventions include the dry gas meter, a pyrometer, a deep-sea sounding machine, a dynamometer, and in 1839 a method of engraving postage stamps, which was adopted by the British government. He also erected the first cast-iron building in the USA. |
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