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Description: | "Tricity Sun Ray" electric lamp for producing both light and heat, des igned as standard occasional table and lamp with black-painted base, c opper table and copper light diffusers which would have concealed 200 volt sausage-shaped Dowsing bulb, patent no 308,625 in 1927 by A. F. B erry, made by the British Electricity Transformer Co., English, 1927-1 930 | License: | http://creativecommons.org/licenses/by-nc-sa/2.5/ | Temporal: | 1927-1930 | Source: | Science Museum | Creator: | British Electricity Transformer Co. (maker) | Identifier: | 1971-540 | Go to resource |
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