| 1. | The " Benson boiler " name, however, was retained.
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| 2. | This application represented the birth of the modern variable-pressure Benson boiler.
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| 3. | These were fed by a number of small, high-pressure Benson boilers.
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| 4. | In 1949, the Benson boilers were replaced by convention boilers, made by Foster Wheeler, operating at.
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| 5. | The second Benson boiler began operation in 1930 without a pressurizing valve at pressures between at the Berlin cable factory.
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| 6. | Since 1933 ( until today ) Siemens do not manufacture their own Benson boilers any more, but instead license the technology to others.
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| 7. | In 1924, Siemens acquired the right to use Benson's patent, and in 1926 27 built the first large Benson boiler in Berlin-Gartenfeld.
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