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CA167403A
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Liquid filtration, aeratuib abd gasufuctuib apparatus
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US1189114A
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Apparatus for the filtration, aeration, and gasification of liquids.
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CA167402A
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Sewage utilizing method
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GB191419901A
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Improved Apparatus for the Filtration, Aeration, and Gasification of Liquids.
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CA177309A
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Sewage purification
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AU1390714B
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Improvements in or relating to hydro extractors or like centrifugal machines
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CA159820A
|
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Hydro-extractor
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US1145900A
|
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Hydro-extractor or like centrifugal machine.
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GB191413235A
|
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Improvements in or connected with the Treatment of Sewage and the like.
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GB191412544A
|
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Improvements in Furnaces.
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GB191410810A
|
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Improved Centrifugal Apparatus for the Treatment or Extraction of Liquids.
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|
GB191403392A
|
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Improvements in, or relating to, Filter Beds for Sewage and other Waste Liquids.
|
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CA162762A
|
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Sewage separation
|
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CA163221A
|
|
Aeration apparatus
|
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US1129682A
|
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Apparatus for treating liquids with gas.
|
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GB191320816A
|
|
Improvements in Apparatus for the Treatment of Sewage and other Waste Liquids.
|
|
US1083833A
|
|
Treatment of sewage.
|
|
GB191313508A
|
|
Improvements in or relating to Hydro Extractors or like Centrifugal Machines.
|
|
GB191301925A
|
|
Improved Apparatus for the Aeration and Gasification of Liquids.
|
|
GB191216237A
|
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Improvements relating to the Treatment of Sewage.
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