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ES226834A3
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Procedure and apparatus for the production of poor gas (Machine-translation by Google Translate, not legally binding)
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US2816823A
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Method of operating gas or shale oil producer-retorts
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US2502141A
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Agitator for gas producers
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US1491795A
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Poke ball for gas producers
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US1531857A
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Gas producer
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US1506826A
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Gas producer
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US1409941A
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Attachment for gas producers
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US1429578A
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Gas producer
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US1491794A
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Tar extractor and scrubber
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US1476292A
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Gas-purifying apparatus
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US1487846A
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Method of operating gas producers
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US1487845A
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Gas-producer apparatus
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US974255A
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Power plant.
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US902958A
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Gas-scrubber.
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US897362A
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Appliance used in combination with gas-generating plants.
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