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Filter for filtering liquids
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Patent number 4,973,407
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Issue date Nov 27, 1990
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Dipl.-Ing. Erich Fetzer GmbH & Co.
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Jurgen Wagner
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Strainer
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Patent number 4,014,796
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Issue date Mar 29, 1977
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Yamakawa Industry Company Ltd.
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Masaaki Sugiyama
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3756411
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Patent number 3,756,411
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Issue date Sep 4, 1973
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2876904
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Patent number 2,876,904
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Issue date Mar 10, 1959
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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2720973
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Patent number 2,720,973
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Issue date Oct 18, 1955
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL