content_output-015_3 (Q5458)
No description defined
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | content_output-015_3 |
No description defined |
Statements
W. Greener did not confine himself to gunnery, and among his numerous inventions were Davy Lamps, a life-boat, self-righting by means of water ballast, and a mechanism by which four gates could be worked at once for level crossings. He also, in 1847, patented an electric light system.
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