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Filter medium
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Patent number 5,223,325
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Issue date Jun 29, 1993
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Holter; Heinz
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Heinz Holter
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Method of treating waste
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Patent number 4,886,000
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Issue date Dec 12, 1989
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Holter; Heinz
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Heinz Holter
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Process for wet quenching of coke
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Patent number 4,802,573
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Issue date Feb 7, 1989
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Holter; Heinz
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Heinz Holter
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
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Solar collector
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Patent number 4,335,708
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Issue date Jun 22, 1982
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Holter; Heinz
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Heinz Holter
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F24 - HEATING RANGES VENTILATING
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Filter for cleaning hot gases
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Patent number 4,295,868
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Issue date Oct 20, 1981
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Industrie-Wert Beteiligungsgesellschaft mbH
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Heinz Holter
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C03 - GLASS MINERAL OR SLAG WOOL
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Refuse pyrolysis
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Patent number 4,206,186
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Issue date Jun 3, 1980
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Holter Gesellschaft fur Patentverwertungsverfahren mbH
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Heinz Holter
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Gas purification
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Patent number 4,201,751
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Issue date May 6, 1980
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Heinz Holter
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL