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DK5095C
(en)
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Septic Container for Treatment of Wastewater (Sewage).
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DK5648C
(en)
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Devices at Containers for Biological Purification of Sewage Water.
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DK5972C
(en)
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Filter device at Containers for biological treatment of sewage water.
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DK5849C
(en)
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Distribution device for the Filter by Containers for biological treatment of Sewage water.
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DK5430C
(en)
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Device for Apparatus for Purification of Wastewater and Other Liquids.
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DK540C
(en)
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Filter for Treatment of Wastewater.
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DK5059C
(en)
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Apparatus for devices for draining sparkling liquids.
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JP1723913S
(en)
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filter
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GB189313305A
(en)
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Improvements in the Treatment of Sewage Sludge.
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DK4468C
(en)
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Device for Draining Liquids.
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DK4730C
(en)
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Apparatus for Draining Carbonated Liquids.
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DK6875C
(en)
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Devices at Septic Tanks.
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DK4912C
(en)
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Apparatus for Purifying Food Water.
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DK5204C
(en)
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Water purifier.
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DK20646C
(en)
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Furnace system for dry distillation of wastewater sludge.
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GB190217456A
(en)
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Improved Apparatus for Controlling the Flow of Sewage in Septic or Bacterial Tank Systems.
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DK4205C
(en)
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Procedure for Utilization of Cork Waste.
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DK6881C
(en)
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Apparatus for Cleaning Sewage Wells.
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DK5058C
(en)
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Apparatus for the release of waste vapor from oil and water.
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DK6759C
(en)
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Apparatus for Evaporation of Liquids.
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DK4538C
(en)
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Procedure for Treating Eggs.
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CH25485A
(en)
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Septic tank for toilets
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DK4114C
(en)
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Grease Purification Procedure.
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DK13541C
(en)
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Device for Apparatus for Wastewater Treatment.
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DK1976C
(en)
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Filter for Purification of Wastewater and Other Impure Liquids by Bacterial Effect.
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